Log Tonic errors with FML_LOG

Author: jason-simmons

DEPS

@@ -123,7 +123,7 @@ deps = {
    # and not have to specific specific hashes.
 
   'src/third_party/tonic':
-   Var('fuchsia_git') + '/tonic' + '@' + '57d508b12462db686573edcbc97891d90cf92f90',
+   Var('fuchsia_git') + '/tonic' + '@' + '2de0ba78507e764f908b195885f53592048b7c45',
 
   'src/third_party/benchmark':
    Var('fuchsia_git') + '/third_party/benchmark' + '@' + '296537bc48d380adf21567c5d736ab79f5363d22',

shell/common/shell.cc

@@ -28,6 +28,7 @@
 #include "flutter/shell/common/vsync_waiter.h"
 #include "third_party/dart/runtime/include/dart_tools_api.h"
 #include "third_party/skia/include/core/SkGraphics.h"
+#include "third_party/tonic/common/log.h"
 
 #ifdef ERROR
 #undef ERROR
@@ -176,6 +177,10 @@ static void PerformInitializationTasks(const blink::Settings& settings) {
       fml::SetLogSettings(log_settings);
     }
 
+    tonic::SetLogHandler([](const char* message) {
+      FML_LOG(ERROR) << message;
+    });
+
     if (settings.trace_skia) {
       InitSkiaEventTracer(settings.trace_skia);
     }