Remove TRACE_EVENT indirection through blink::Platform

sky/engine/platform/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
 import("//sky/engine/build/scripts/scripts.gni")
 import("//sky/engine/config.gni")
 import("//testing/test.gni")
 
 # Most targets in this file are private actions so use that as the default.
@@ skipping 98 matching lines @@
     "ColorSuggestion.h",
     "ContentType.cpp",
     "ContentType.h",
     "Cursor.cpp",
     "Cursor.h",
     "DateComponents.cpp",
     "DateComponents.h",
     "Decimal.cpp",
     "Decimal.h",
     "EventDispatchForbiddenScope.h",
-    "EventTracer.cpp",
-    "EventTracer.h",
     "exported/linux/WebFontInfo.cpp",
     "exported/linux/WebFontRenderStyle.cpp",
     "exported/Platform.cpp",
     "exported/ServiceProvider.cpp",
     "exported/WebArrayBuffer.cpp",
     "exported/WebCommon.cpp",
-    "exported/WebConvertableToTraceFormat.cpp",
     "exported/WebCString.cpp",
     "exported/WebCursorInfo.cpp",
     "exported/WebData.cpp",
     "exported/WebHTTPBody.cpp",
     "exported/WebHTTPLoadInfo.cpp",
     "exported/WebImageSkia.cpp",
     "exported/WebString.cpp",
     "exported/WebURL.cpp",
     "exported/WebURLError.cpp",
     "exported/WebURLLoadTiming.cpp",
@@ skipping 394 matching lines @@
     "text/TextStream.h",
     "text/UnicodeBidi.h",
     "text/UnicodeRange.cpp",
     "text/UnicodeRange.h",
     "text/UnicodeUtilities.cpp",
     "text/UnicodeUtilities.h",
     "ThreadTimers.cpp",
     "ThreadTimers.h",
     "Timer.cpp",
     "Timer.h",
-    "TracedValue.cpp",
-    "TracedValue.h",
     "TraceEvent.h",
     "transforms/AffineTransform.cpp",
     "transforms/AffineTransform.h",
     "transforms/IdentityTransformOperation.h",
     "transforms/InterpolatedTransformOperation.cpp",
     "transforms/InterpolatedTransformOperation.h",
     "transforms/Matrix3DTransformOperation.cpp",
     "transforms/Matrix3DTransformOperation.h",
     "transforms/MatrixTransformOperation.cpp",
     "transforms/MatrixTransformOperation.h",
@@ skipping 106 matching lines @@
 
   sources = [
     "ClockTest.cpp",
     "DecimalTest.cpp",
     "LayoutUnitTest.cpp",
     "LifecycleContextTest.cpp",
     "PurgeableVectorTest.cpp",
     "SharedBufferTest.cpp",
     "TestingPlatformSupport.cpp",
     "TestingPlatformSupport.h",
-    "TracedValueTest.cpp",
     "animation/TimingFunctionTest.cpp",
     "animation/UnitBezierTest.cpp",
     "clipboard/ClipboardUtilitiesTest.cpp",
     "fonts/FontCacheTest.cpp",
     "fonts/FontDescriptionTest.cpp",
     "fonts/FontTest.cpp",
     "fonts/GlyphPageTreeNodeTest.cpp",
     "fonts/android/FontCacheAndroidTest.cpp",
     "geometry/FloatBoxTest.cpp",
     "geometry/FloatBoxTestHelpers.cpp",
@@ skipping 58 matching lines @@
     # See https://bugs.webkit.org/show_bug.cgi?id=62916.
     # TODO(GYP)
     #'cflags': ['-marm'],
     #    'conditions': [
     #      ['OS=="android"', {
     #        'cflags!': ['-mthumb'],
     #      }],
     #    ],
   }
 }