Chrome side of webkit merge to 40124....

webkit/port/bindings/v8/V8CanvasPixelArrayCustom.cpp

 // Copyright (c) 2009, 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:
 // 
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 
 // Get the specified value from the pixel buffer and return it wrapped as a
 // JavaScript Number object to V8. Accesses outside the valid pixel buffer
 // range return "undefined".
 INDEXED_PROPERTY_GETTER(CanvasPixelArray) {
     INC_STATS("DOM.CanvasPixelArray.IndexedPropertyGetter");
     CanvasPixelArray* pixelBuffer =
         V8Proxy::ToNativeObject<CanvasPixelArray>(
             V8ClassIndex::CANVASPIXELARRAY,
             info.Holder());
-  
+
     if ((index < 0) || (index >= pixelBuffer->length())) {
         return v8::Undefined();
     }
-    return v8::Number::New(pixelBuffer->get(index));
+    unsigned char result;
+    if (!pixelBuffer->get(index, result)) {
+        return v8::Undefined();
+    }
+    return v8::Number::New(result);
 }
 
 
 // Set the specified value in the pixel buffer. Accesses outside the valid pixel
 // buffer range are silently ignored.
 INDEXED_PROPERTY_SETTER(CanvasPixelArray) {
     INC_STATS("DOM.CanvasPixelArray.IndexedPropertySetter");
     CanvasPixelArray* pixelBuffer =
         V8Proxy::ToNativeObject<CanvasPixelArray>(
             V8ClassIndex::CANVASPIXELARRAY,
             info.Holder());
   
     if ((index >= 0) && (index < pixelBuffer->length())) {
         pixelBuffer->set(index, value->NumberValue());
     }
     return value;
 }
 
 
 }  // namespace WebCore