Use C++11 features in core/html

Source/core/html/canvas/CanvasRenderingContext2D.h

Index: Source/core/html/canvas/CanvasRenderingContext2D.h
diff --git a/Source/core/html/canvas/CanvasRenderingContext2D.h b/Source/core/html/canvas/CanvasRenderingContext2D.h
index 563d3ca5668e1f2d927fc17b90298c0f04815fbf..2d1e310647c1d5f610510b46c8dd8ccac0a8690a 100644
--- a/Source/core/html/canvas/CanvasRenderingContext2D.h
+++ b/Source/core/html/canvas/CanvasRenderingContext2D.h
@@ -64,7 +64,7 @@ class HTMLVideoElement;
 class ImageData;
 class TextMetrics;
 
-typedef WillBeHeapHashMap<String, RefPtrWillBeMember<MutableStylePropertySet> > MutableStylePropertyMap;
+typedef WillBeHeapHashMap<String, RefPtrWillBeMember<MutableStylePropertySet>> MutableStylePropertyMap;
 
 class CanvasRenderingContext2D final: public CanvasRenderingContext, public ScriptWrappable, public CanvasPathMethods {
     DEFINE_WRAPPERTYPEINFO();
@@ -364,7 +364,7 @@ private:
     virtual WebLayer* platformLayer() const override;
     TextDirection toTextDirection(Direction, RenderStyle** computedStyle = nullptr) const;
 
-    WillBeHeapVector<OwnPtrWillBeMember<State> > m_stateStack;
+    WillBeHeapVector<OwnPtrWillBeMember<State>> m_stateStack;
     OwnPtrWillBeMember<HitRegionManager> m_hitRegionManager;
     bool m_usesCSSCompatibilityParseMode;
     GraphicsContext::AntiAliasingMode m_clipAntialiasing;