Move platform specific information to PlatformConfiguration class.

Author: gspencergoog

ci/licenses_golden/licenses_flutter

@@ -394,6 +394,9 @@ FILE: ../../../flutter/lib/ui/ui_benchmarks.cc
 FILE: ../../../flutter/lib/ui/ui_dart_state.cc
 FILE: ../../../flutter/lib/ui/ui_dart_state.h
 FILE: ../../../flutter/lib/ui/window.dart
+FILE: ../../../flutter/lib/ui/window/platform_configuration.cc
+FILE: ../../../flutter/lib/ui/window/platform_configuration.h
+FILE: ../../../flutter/lib/ui/window/platform_configuration_unittests.cc
 FILE: ../../../flutter/lib/ui/window/platform_message.cc
 FILE: ../../../flutter/lib/ui/window/platform_message.h
 FILE: ../../../flutter/lib/ui/window/platform_message_response.cc
@@ -569,6 +572,8 @@ FILE: ../../../flutter/runtime/dart_vm_unittests.cc
 FILE: ../../../flutter/runtime/embedder_resources.cc
 FILE: ../../../flutter/runtime/embedder_resources.h
 FILE: ../../../flutter/runtime/fixtures/runtime_test.dart
+FILE: ../../../flutter/runtime/platform_data.cc
+FILE: ../../../flutter/runtime/platform_data.h
 FILE: ../../../flutter/runtime/ptrace_ios.cc
 FILE: ../../../flutter/runtime/ptrace_ios.h
 FILE: ../../../flutter/runtime/runtime_controller.cc
@@ -581,8 +586,6 @@ FILE: ../../../flutter/runtime/skia_concurrent_executor.cc
 FILE: ../../../flutter/runtime/skia_concurrent_executor.h
 FILE: ../../../flutter/runtime/test_font_data.cc
 FILE: ../../../flutter/runtime/test_font_data.h
-FILE: ../../../flutter/runtime/window_data.cc
-FILE: ../../../flutter/runtime/window_data.h
 FILE: ../../../flutter/shell/common/animator.cc
 FILE: ../../../flutter/shell/common/animator.h
 FILE: ../../../flutter/shell/common/animator_unittests.cc

lib/ui/BUILD.gn

@@ -89,6 +89,8 @@ source_set_maybe_fuchsia_legacy("ui") {
     "text/text_box.h",
     "ui_dart_state.cc",
     "ui_dart_state.h",
+    "window/platform_configuration.cc",
+    "window/platform_configuration.h",
     "window/platform_message.cc",
     "window/platform_message.h",
     "window/platform_message_response.cc",
@@ -162,6 +164,7 @@ if (current_toolchain == host_toolchain) {
     sources = [
       "painting/image_decoder_unittests.cc",
       "painting/vertices_unittests.cc",
+      "window/platform_configuration_unittests.cc",
       "window/pointer_data_packet_converter_unittests.cc",
     ]
 

lib/ui/compositing/scene.cc

@@ -8,6 +8,7 @@
 #include "flutter/lib/ui/painting/image.h"
 #include "flutter/lib/ui/painting/picture.h"
 #include "flutter/lib/ui/ui_dart_state.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "flutter/lib/ui/window/window.h"
 #include "third_party/skia/include/core/SkImageInfo.h"
 #include "third_party/skia/include/core/SkSurface.h"
@@ -41,7 +42,10 @@ Scene::Scene(std::shared_ptr<flutter::Layer> rootLayer,
              uint32_t rasterizerTracingThreshold,
              bool checkerboardRasterCacheImages,
              bool checkerboardOffscreenLayers) {
-  auto viewport_metrics = UIDartState::Current()->window()->viewport_metrics();
+  auto viewport_metrics = UIDartState::Current()
+                              ->platform_configuration()
+                              ->get_window()
+                              .viewport_metrics();
 
   layer_tree_ = std::make_unique<LayerTree>(
       SkISize::Make(viewport_metrics.physical_width,

lib/ui/dart_ui.cc

@@ -28,7 +28,7 @@
 #include "flutter/lib/ui/text/font_collection.h"
 #include "flutter/lib/ui/text/paragraph.h"
 #include "flutter/lib/ui/text/paragraph_builder.h"
-#include "flutter/lib/ui/window/window.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "third_party/tonic/converter/dart_converter.h"
 #include "third_party/tonic/logging/dart_error.h"
 
@@ -81,7 +81,7 @@ void DartUI::InitForGlobal() {
     SemanticsUpdate::RegisterNatives(g_natives);
     SemanticsUpdateBuilder::RegisterNatives(g_natives);
     Vertices::RegisterNatives(g_natives);
-    Window::RegisterNatives(g_natives);
+    PlatformConfiguration::RegisterNatives(g_natives);
 #if defined(LEGACY_FUCHSIA_EMBEDDER)
     SceneHost::RegisterNatives(g_natives);
 #endif

lib/ui/hooks.dart

@@ -238,7 +238,7 @@ void _runMainZoned(Function startMainIsolateFunction,
   }, null);
 }
 
-void _reportUnhandledException(String error, String stackTrace) native 'Window_reportUnhandledException';
+void _reportUnhandledException(String error, String stackTrace) native 'PlatformConfiguration_reportUnhandledException';
 
 /// Invokes [callback] inside the given [zone].
 void _invoke(void callback()?, Zone zone) {

lib/ui/painting/canvas.cc

@@ -11,6 +11,7 @@
 #include "flutter/lib/ui/painting/image.h"
 #include "flutter/lib/ui/painting/matrix.h"
 #include "flutter/lib/ui/ui_dart_state.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "flutter/lib/ui/window/window.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
@@ -421,11 +422,15 @@ void Canvas::drawShadow(const CanvasPath* path,
                         SkColor color,
                         double elevation,
                         bool transparentOccluder) {
-  if (!path)
+  if (!path) {
     Dart_ThrowException(
         ToDart("Canvas.drawShader called with non-genuine Path."));
-  SkScalar dpr =
-      UIDartState::Current()->window()->viewport_metrics().device_pixel_ratio;
+  }
+  SkScalar dpr = UIDartState::Current()
+                     ->platform_configuration()
+                     ->get_window()
+                     .viewport_metrics()
+                     .device_pixel_ratio;
   external_allocation_size_ += path->path().approximateBytesUsed();
   flutter::PhysicalShapeLayer::DrawShadow(canvas_, path->path(), color,
                                           elevation, transparentOccluder, dpr);

lib/ui/text/font_collection.cc

@@ -8,7 +8,7 @@
 
 #include "flutter/lib/ui/text/asset_manager_font_provider.h"
 #include "flutter/lib/ui/ui_dart_state.h"
-#include "flutter/lib/ui/window/window.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "flutter/runtime/test_font_data.h"
 #include "rapidjson/document.h"
 #include "rapidjson/rapidjson.h"
@@ -30,8 +30,10 @@ namespace {
 void LoadFontFromList(tonic::Uint8List& font_data,
                       Dart_Handle callback,
                       std::string family_name) {
-  FontCollection& font_collection =
-      UIDartState::Current()->window()->client()->GetFontCollection();
+  FontCollection& font_collection = UIDartState::Current()
+                                        ->platform_configuration()
+                                        ->client()
+                                        ->GetFontCollection();
   font_collection.LoadFontFromList(font_data.data(), font_data.num_elements(),
                                    family_name);
   font_data.Release();

lib/ui/text/paragraph_builder.cc

@@ -10,7 +10,7 @@
 #include "flutter/fml/task_runner.h"
 #include "flutter/lib/ui/text/font_collection.h"
 #include "flutter/lib/ui/ui_dart_state.h"
-#include "flutter/lib/ui/window/window.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "flutter/third_party/txt/src/txt/font_style.h"
 #include "flutter/third_party/txt/src/txt/font_weight.h"
 #include "flutter/third_party/txt/src/txt/paragraph_style.h"
@@ -288,8 +288,10 @@ ParagraphBuilder::ParagraphBuilder(
     style.locale = locale;
   }
 
-  FontCollection& font_collection =
-      UIDartState::Current()->window()->client()->GetFontCollection();
+  FontCollection& font_collection = UIDartState::Current()
+                                        ->platform_configuration()
+                                        ->client()
+                                        ->GetFontCollection();
 
 #if FLUTTER_ENABLE_SKSHAPER
 #define FLUTTER_PARAGRAPH_BUILDER txt::ParagraphBuilder::CreateSkiaBuilder

lib/ui/ui_dart_state.cc

@@ -5,7 +5,7 @@
 #include "flutter/lib/ui/ui_dart_state.h"
 
 #include "flutter/fml/message_loop.h"
-#include "flutter/lib/ui/window/window.h"
+#include "flutter/lib/ui/window/platform_configuration.h"
 #include "third_party/tonic/converter/dart_converter.h"
 #include "third_party/tonic/dart_message_handler.h"
 
@@ -73,18 +73,23 @@ void UIDartState::ThrowIfUIOperationsProhibited() {
 
 void UIDartState::SetDebugName(const std::string debug_name) {
   debug_name_ = debug_name;
-  if (window_)
-    window_->client()->UpdateIsolateDescription(debug_name_, main_port_);
+  if (platform_configuration_) {
+    platform_configuration_->client()->UpdateIsolateDescription(debug_name_,
+                                                                main_port_);
+  }
 }
 
 UIDartState* UIDartState::Current() {
   return static_cast<UIDartState*>(DartState::Current());
 }
 
-void UIDartState::SetWindow(std::unique_ptr<Window> window) {
-  window_ = std::move(window);
-  if (window_)
-    window_->client()->UpdateIsolateDescription(debug_name_, main_port_);
+void UIDartState::SetPlatformConfiguration(
+    std::unique_ptr<PlatformConfiguration> platform_configuration) {
+  platform_configuration_ = std::move(platform_configuration);
+  if (platform_configuration_) {
+    platform_configuration_->client()->UpdateIsolateDescription(debug_name_,
+                                                                main_port_);
+  }
 }
 
 const TaskRunners& UIDartState::GetTaskRunners() const {

lib/ui/ui_dart_state.h

@@ -27,7 +27,7 @@
 
 namespace flutter {
 class FontSelector;
-class Window;
+class PlatformConfiguration;
 
 class UIDartState : public tonic::DartState {
  public:
@@ -44,7 +44,9 @@ class UIDartState : public tonic::DartState {
 
   const std::string& logger_prefix() const { return logger_prefix_; }
 
-  Window* window() const { return window_.get(); }
+  PlatformConfiguration* platform_configuration() const {
+    return platform_configuration_.get();
+  }
 
   const TaskRunners& GetTaskRunners() const;
 
@@ -97,7 +99,8 @@ class UIDartState : public tonic::DartState {
 
   ~UIDartState() override;
 
-  void SetWindow(std::unique_ptr<Window> window);
+  void SetPlatformConfiguration(
+      std::unique_ptr<PlatformConfiguration> platform_configuration);
 
   const std::string& GetAdvisoryScriptURI() const;
 
@@ -119,7 +122,7 @@ class UIDartState : public tonic::DartState {
   Dart_Port main_port_ = ILLEGAL_PORT;
   const bool is_root_isolate_;
   std::string debug_name_;
-  std::unique_ptr<Window> window_;
+  std::unique_ptr<PlatformConfiguration> platform_configuration_;
   tonic::DartMicrotaskQueue microtask_queue_;
   UnhandledExceptionCallback unhandled_exception_callback_;
   const std::shared_ptr<IsolateNameServer> isolate_name_server_;