Make CanvasRenderingContext2D use SkCanvas directly

Source/platform/graphics/GraphicsContext.cpp

Index: Source/platform/graphics/GraphicsContext.cpp
diff --git a/Source/platform/graphics/GraphicsContext.cpp b/Source/platform/graphics/GraphicsContext.cpp
index 261e32a2db545508aeffd95a5f24780660a1fc81..f33555f0d56a484a84f309b28202416743ed857d 100644
--- a/Source/platform/graphics/GraphicsContext.cpp
+++ b/Source/platform/graphics/GraphicsContext.cpp
@@ -1520,7 +1520,7 @@ void GraphicsContext::clipRect(const SkRect& rect, AntiAliasingMode aa, SkRegion
         return;
 
     if (op != SkRegion::kIntersect_Op && op != SkRegion::kReplace_Op)
-        mutableState()->setHasComplexClip();
+        setHasComplexClip();
 
     m_canvas->clipRect(rect, op, aa == AntiAliased);
 }
@@ -1532,7 +1532,7 @@ void GraphicsContext::clipPath(const SkPath& path, AntiAliasingMode aa, SkRegion
         return;
 
     if (!path.isRect(0) || (op != SkRegion::kIntersect_Op && op != SkRegion::kReplace_Op))
-        mutableState()->setHasComplexClip();
+        setHasComplexClip();
 
     m_canvas->clipPath(path, op, aa == AntiAliased);
 }
@@ -1544,7 +1544,7 @@ void GraphicsContext::clipRRect(const SkRRect& rect, AntiAliasingMode aa, SkRegi
         return;
 
     if (!rect.isRect() || (op != SkRegion::kIntersect_Op && op != SkRegion::kReplace_Op))
-        mutableState()->setHasComplexClip();
+        setHasComplexClip();
 
     m_canvas->clipRRect(rect, op, aa == AntiAliased);
 }