Merge 109171 - [chromium] Inform v8 about extra memory used for PatternSkia clamp mode

Source/WebCore/platform/graphics/skia/PatternSkia.cpp

 /*
  * Copyright (C) 2008 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 20 matching lines @@
 
 #include "AffineTransform.h"
 #include "Image.h"
 #include "NativeImageSkia.h"
 
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkColorShader.h"
 #include "SkShader.h"
 
+#include <v8.h>
+
 namespace WebCore {
 
 void Pattern::platformDestroy()
 {
     SkSafeUnref(m_pattern);
     m_pattern = 0;
+    if (m_externalMemoryAllocated) {
+        v8::V8::AdjustAmountOfExternalAllocatedMemory(-m_externalMemoryAllocated);
+        m_externalMemoryAllocated = 0;
+    }
 }
 
 PlatformPatternPtr Pattern::platformPattern(const AffineTransform& patternTransform)
 {
     if (m_pattern)
         return m_pattern;
 
     // Note: patternTransform is ignored since it seems to be applied elsewhere
     // (when the pattern is used?). Applying it to the pattern (i.e.
     // shader->setLocalMatrix) results in a double transformation. This can be
@@ skipping 25 matching lines @@
         // Create a transparent bitmap 1 pixel wider and/or taller than the
         // original, then copy the orignal into it.
         // FIXME: Is there a better way to pad (not scale) an image in skia?
         SkBitmap bm2;
         bm2.setConfig(image->bitmap().config(), image->bitmap().width() + expandW, image->bitmap().height() + expandH);
         bm2.allocPixels();
         bm2.eraseARGB(0x00, 0x00, 0x00, 0x00);
         SkCanvas canvas(bm2);
         canvas.drawBitmap(image->bitmap(), 0, 0);
         m_pattern = SkShader::CreateBitmapShader(bm2, tileModeX, tileModeY);
+
+        m_externalMemoryAllocated = bm2.getSafeSize();
+        v8::V8::AdjustAmountOfExternalAllocatedMemory(m_externalMemoryAllocated);
     }
     m_pattern->setLocalMatrix(m_patternSpaceTransformation);
     return m_pattern;
 }
 
 void Pattern::setPlatformPatternSpaceTransform()
 {
     if (m_pattern)
         m_pattern->setLocalMatrix(m_patternSpaceTransformation);
 }
 
 } // namespace WebCore