Add a origin clean flag in ImageBitmap class

third_party/WebKit/Source/platform/graphics/RecordingImageBufferSurfaceTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/graphics/RecordingImageBufferSurface.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/ImageBufferClient.h"
 #include "platform/graphics/UnacceleratedImageBufferSurface.h"
@@ skipping 29 matching lines @@
     bool isDirty() override { return m_isDirty; }
     void didFinalizeFrame() override
     {
         if (m_isDirty) {
             Platform::current()->currentThread()->removeTaskObserver(this);
             m_isDirty = false;
         }
         ++m_frameCount;
     }
 
+    bool hasSingleSecurityOrigin()
+    {
+        return true;
+    }
+
     // TaskObserver implementation
     void willProcessTask() override { ASSERT_NOT_REACHED(); }
     void didProcessTask() override
     {
         ASSERT_TRUE(m_isDirty);
         FloatRect dirtyRect(0, 0, 1, 1);
         m_imageBuffer->finalizeFrame(dirtyRect);
         ASSERT_FALSE(m_isDirty);
     }
     void restoreCanvasMatrixClipStack(SkCanvas*) const override { }
@@ skipping 327 matching lines @@
 }
 
 DEFINE_TEST_TASK_WRAPPER_CLASS(testClearRect)
 TEST_F(RecordingImageBufferSurfaceTest, testClearRect)
 {
     CALL_TEST_TASK_WRAPPER(testClearRect);
     expectDisplayListEnabled(true);
 }
 
 } // namespace blink