Use newImageSnapshot() to get an image from a Canvas

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 603f976ec39ab4677e5fc2f80efa12eb5a54d199..bc7df9f4422bece29c8036d1efe853827104f2f1 100644
--- a/Source/platform/graphics/GraphicsContextState.cpp
+++ b/Source/platform/graphics/GraphicsContextState.cpp
@@ -114,13 +114,13 @@ void GraphicsContextState::clearStrokeGradient()
     m_strokePaint.setColor(applyAlpha(m_strokeData.color().rgb()));
 }
 
-void GraphicsContextState::setStrokePattern(const PassRefPtr<Pattern> pattern)
+void GraphicsContextState::setStrokePattern(const PassRefPtr<Pattern> pattern, SkShader::ShaderLocation preferredLocation)
 {
     m_strokeData.setColor(Color::black);
     m_strokeData.clearGradient();
     m_strokeData.setPattern(pattern);
     m_strokePaint.setColor(applyAlpha(SK_ColorBLACK));
-    m_strokePaint.setShader(m_strokeData.pattern()->shader());
+    m_strokePaint.setShader(m_strokeData.pattern()->shader(preferredLocation));
 }
 
 void GraphicsContextState::clearStrokePattern()
@@ -173,13 +173,13 @@ void GraphicsContextState::clearFillGradient()
     m_fillPaint.setColor(applyAlpha(m_fillColor.rgb()));
 }
 
-void GraphicsContextState::setFillPattern(const PassRefPtr<Pattern> pattern)
+void GraphicsContextState::setFillPattern(const PassRefPtr<Pattern> pattern, SkShader::ShaderLocation preferredLocation)
 {
     m_fillColor = Color::black;
     m_fillGradient.clear();
     m_fillPattern = pattern;
     m_fillPaint.setColor(applyAlpha(SK_ColorBLACK));
-    m_fillPaint.setShader(m_fillPattern->shader());
+    m_fillPaint.setShader(m_fillPattern->shader(preferredLocation));
 }
 
 void GraphicsContextState::clearFillPattern()