Move overdraw tracking code from GraphicsContext to CanvasRenderingContext2D

Source/platform/graphics/GraphicsContextState.cpp

Index: Source/platform/graphics/GraphicsContextState.cpp
diff --git a/Source/platform/graphics/GraphicsContextState.cpp b/Source/platform/graphics/GraphicsContextState.cpp
index 1dc94d67a50d4da0c9522c686aeb138a2dfad931..4bef933131fb10323aec9ddb52370ff5fe2716f5 100644
--- a/Source/platform/graphics/GraphicsContextState.cpp
+++ b/Source/platform/graphics/GraphicsContextState.cpp
@@ -18,7 +18,6 @@ GraphicsContextState::GraphicsContextState()
     , m_saveCount(0)
     , m_shouldAntialias(true)
     , m_shouldClampToSourceRect(true)
-    , m_hasComplexClip(false)
 {
     m_strokePaint.setStyle(SkPaint::kStroke_Style);
     m_strokePaint.setStrokeWidth(SkFloatToScalar(m_strokeData.thickness()));
@@ -53,8 +52,7 @@ GraphicsContextState::GraphicsContextState(const GraphicsContextState& other)
     , m_interpolationQuality(other.m_interpolationQuality)
     , m_saveCount(0)
     , m_shouldAntialias(other.m_shouldAntialias)
-    , m_shouldClampToSourceRect(other.m_shouldClampToSourceRect)
-    , m_hasComplexClip(other.m_hasComplexClip) { }
+    , m_shouldClampToSourceRect(other.m_shouldClampToSourceRect) { }
 
 void GraphicsContextState::copy(const GraphicsContextState& source)
 {
@@ -253,15 +251,4 @@ void GraphicsContextState::setShouldAntialias(bool shouldAntialias)
     m_fillPaint.setAntiAlias(shouldAntialias);
 }
 
-bool GraphicsContextState::hasComplexClip() const
-{
-    return m_hasComplexClip;
-}
-
-void GraphicsContextState::setHasComplexClip()
-{
-    m_hasComplexClip = true;
-}
-
-
 } // namespace blink