Add drawImage() originClean() getSecurityOrigin() to OffscreenCanvas

third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp

Index: third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp
diff --git a/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp
index b29be4df2562f67099e7aa9968280a82a549d3fe..dd61fee9ba35032bb512b23a57b789b840b6f6f6 100644
--- a/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp
+++ b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.cpp
@@ -14,6 +14,7 @@ namespace blink {
 
 OffscreenCanvas::OffscreenCanvas(const IntSize& size)
     : m_size(size)
+    , m_originClean(true)
 {
 }
 
@@ -102,6 +103,18 @@ void OffscreenCanvas::registerRenderingContextFactory(PassOwnPtr<CanvasRendering
     renderingContextFactories()[type] = std::move(renderingContextFactory);
 }
 
+bool OffscreenCanvas::originClean() const
+{
+    // TODO(crbug.com/607575): Make Settings accessable in worker and use
+    // disableReadingFromCanvas to determine originClean value.
+    return m_originClean;
+}
+
+SecurityOrigin* OffscreenCanvas::getSecurityOrigin(ScriptState* scriptState) const

[Justin Novosad, 2016/04/29 04:08:54]

This method is not needed

[xlai (Olivia), 2016/04/29 18:57:01]

Removed.

+{
+    return scriptState->getExecutionContext()->getSecurityOrigin();
+}
+
 DEFINE_TRACE(OffscreenCanvas)
 {
     visitor->trace(m_context);