Correct setup-related typos (flutter#24846)

Corrects uses of setup as a verb to 'set up', leaves noun/noun-phrase
forms of setup as 'setup'. Also settles on 'teardown' as opposed to
tear-down for consistency across the codebase.

A few other minor comment/wording corrections.

Author: cbracken

ci/docker/build/README.md

@@ -1,8 +1,8 @@
 This directory includes scripts to build the docker container image used for
 building flutter/engine in our CI system (currently [Cirrus](cirrus-ci.org)).
 
-In order to run the scripts, you have to setup `docker` and `gcloud`. Please
-refer to internal doc go/installdocker for how to setup `docker` on gLinux.
+In order to run the scripts, you have to set up `docker` and `gcloud`. Please
+refer to internal doc go/installdocker for how to set up `docker` on gLinux.
 
 Cirrus will build (and cache) a Docker image based on this `Dockerfile` for
 Linux tasks using its

examples/glfw/README.md

@@ -24,6 +24,6 @@ In order to **build** and **run** the example you should be able to go into this
 
 ## Troubleshooting
 There are a few things you might have to tweak in order to get your build working:
- * Flutter Engine Location - Inside the `CMakeList.txt` file you will see that it is setup to search for the header and library for the Flutter Engine in specific locations, those might not be the location of your Flutter Engine.
+ * Flutter Engine Location - Inside the `CMakeList.txt` file you will see that it is set up to search for the header and library for the Flutter Engine in specific locations, those might not be the location of your Flutter Engine.
  * Pixel Ratio - If the project runs but is drawing at the wrong scale you may have to tweak the `kPixelRatio` variable in `FlutterEmbedderGLFW.cc` file.
  * GLFW Location - Inside the `CMakeLists.txt` we are searching for the GLFW library, if CMake can't find it you may have to edit that.

fml/platform/win/mapping_win.cc

@@ -88,7 +88,7 @@ FileMapping::FileMapping(const fml::UniqueFD& fd,
       MapViewOfFile(mapping_handle_.get(), desired_access, 0, 0, mapping_size));
 
   if (mapping == nullptr) {
-    FML_DLOG(ERROR) << "Could not setup file mapping. "
+    FML_DLOG(ERROR) << "Could not set up file mapping. "
                     << GetLastErrorMessage();
     return;
   }

lib/ui/channel_buffers.dart

@@ -236,7 +236,7 @@ class _Channel {
 /// Messages for a channel are stored until a listener is provided for that channel,
 /// using [setListener]. Only one listener may be configured per channel.
 ///
-/// Typically these buffers are drained once a callback is setup on
+/// Typically these buffers are drained once a callback is set up on
 /// the [BinaryMessenger] in the Flutter framework. (See [setListener].)
 ///
 /// ## Buffer capacity and overflow
@@ -381,7 +381,7 @@ class ChannelBuffers {
   /// Remove and process all stored messages for a given channel.
   ///
   /// This should be called once a channel is prepared to handle messages
-  /// (i.e. when a message handler is setup in the framework).
+  /// (i.e. when a message handler is set up in the framework).
   ///
   /// The messages are processed by calling the given `callback`. Each message
   /// is processed in its own microtask.

lib/ui/painting/image_decoder_unittests.cc

@@ -40,7 +40,7 @@ class TestIOManager final : public IOManager {
         weak_factory_(this) {
     FML_CHECK(task_runner->RunsTasksOnCurrentThread())
         << "The IO manager must be initialized its primary task runner. The "
-           "test harness may not be setup correctly/safely.";
+           "test harness may not be set up correctly/safely.";
     weak_prototype_ = weak_factory_.GetWeakPtr();
   }
 

lib/ui/painting/image_encoding.cc

@@ -172,7 +172,7 @@ sk_sp<SkData> CopyImageByteData(sk_sp<SkImage> raster_image,
                         color_type, kPremul_SkAlphaType, nullptr));
 
   if (!surface) {
-    FML_LOG(ERROR) << "Could not setup the surface for swizzle.";
+    FML_LOG(ERROR) << "Could not set up the surface for swizzle.";
     return nullptr;
   }
 

lib/web_ui/dev/integration_tests_manager.dart

@@ -351,7 +351,7 @@ class IntegrationTestsManager {
         print('ERROR: Test driver file named has ${expectedDriverName} '
             'not found under directory ${testDirectory.path}. Stopping the '
             'integration tests. Please add ${expectedDriverName}. Check to '
-            'README file on more details on how to setup integration tests.');
+            'README file on more details on how to set up integration tests.');
       }
       throw StateError('Error in test files. Check the logs for '
           'further instructions');

lib/web_ui/lib/src/engine/dom_renderer.dart

@@ -454,7 +454,7 @@ flt-glass-pane * {
     if (html.window.visualViewport == null && isWebKit) {
       // Safari sometimes gives us bogus innerWidth/innerHeight values when the
       // page loads. When it changes the values to correct ones it does not
-      // notify of the change via `onResize`. As a workaround, we setup a
+      // notify of the change via `onResize`. As a workaround, we set up a
       // temporary periodic timer that polls innerWidth and triggers the
       // resizeListener so that the framework can react to the change.
       //
@@ -464,7 +464,7 @@ flt-glass-pane * {
       // VisualViewport API is not enabled in Firefox as well. On the other hand
       // Firefox returns correct values for innerHeight, innerWidth.
       // Firefox also triggers html.window.onResize therefore we don't need this
-      // timer setup for Firefox.
+      // timer to be set up for Firefox.
       final int initialInnerWidth = html.window.innerWidth!;
       // Counts how many times we checked screen size. We check up to 5 times.
       int checkCount = 0;

lib/web_ui/lib/src/engine/navigation/history.dart

@@ -217,8 +217,8 @@ class SingleEntryBrowserHistory extends BrowserHistory {
     if (!_isFlutterEntry(html.window.history.state)) {
       // An entry may not have come from Flutter, for example, when the user
       // refreshes the page. They land directly on the "flutter" entry, so
-      // there's no need to setup the "origin" and "flutter" entries, we can
-      // safely assume they are already setup.
+      // there's no need to set up the "origin" and "flutter" entries, we can
+      // safely assume they are already set up.
       _setupOriginEntry(strategy);
       _setupFlutterEntry(strategy, replace: false, path: path);
     }

lib/web_ui/lib/src/engine/text/measurement.dart

@@ -70,7 +70,7 @@ class RulerManager extends RulerHost {
 
   /// The cache of rulers used to measure text.
   ///
-  /// Each ruler is keyed by paragraph style. This allows us to setup the
+  /// Each ruler is keyed by paragraph style. This allows us to set up the
   /// ruler's DOM structure once during the very first measurement of a given
   /// paragraph style. Subsequent measurements could reuse the same ruler and
   /// only swap the text contents. This minimizes the amount of work a browser