Moving GraphicsContext and dependencies from core to platform.

Source/platform/graphics/Canvas2DLayerBridge.cpp

Index: Source/platform/graphics/Canvas2DLayerBridge.cpp
diff --git a/Source/core/platform/graphics/Canvas2DLayerBridge.cpp b/Source/platform/graphics/Canvas2DLayerBridge.cpp
similarity index 98%
rename from Source/core/platform/graphics/Canvas2DLayerBridge.cpp
rename to Source/platform/graphics/Canvas2DLayerBridge.cpp
index f7e911ca33b2d907134986ca2b647367234e92f9..d177583bd5d10fe1446595c763cabe565cff6330 100644
--- a/Source/core/platform/graphics/Canvas2DLayerBridge.cpp
+++ b/Source/platform/graphics/Canvas2DLayerBridge.cpp
@@ -25,15 +25,15 @@
 
 #include "config.h"
 
-#include "core/platform/graphics/Canvas2DLayerBridge.h"
+#include "platform/graphics/Canvas2DLayerBridge.h"
 
 #include "GrContext.h"
 #include "SkDevice.h"
 #include "SkSurface.h"
-#include "core/platform/graphics/Canvas2DLayerManager.h"
-#include "core/platform/graphics/GraphicsLayer.h"
-#include "core/platform/graphics/gpu/SharedGraphicsContext3D.h"
 #include "platform/TraceEvent.h"
+#include "platform/graphics/Canvas2DLayerManager.h"
+#include "platform/graphics/GraphicsLayer.h"
+#include "platform/graphics/gpu/SharedGraphicsContext3D.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebCompositorSupport.h"
 #include "public/platform/WebGraphicsContext3D.h"