Fixing bad casting between DOMTypedArray objects

third_party/WebKit/Source/core/html/ImageData.h

 /*
  * Copyright (C) 2008, 2009 Apple 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 46 matching lines @@
   kParamHeight = 1 << 2,
   kParamData = 1 << 3,
 };
 
 enum ImageDataStorageFormat {
   kUint8ClampedArrayStorageFormat,
   kUint16ArrayStorageFormat,
   kFloat32ArrayStorageFormat,
 };
 
+enum StorageFormatSource {
+  kStorageFormatFromColorSettings,
+  kStorageFormatFromBufferType,
+};
+
 constexpr const char* kUint8ClampedArrayStorageFormatName = "uint8";
 constexpr const char* kUint16ArrayStorageFormatName = "uint16";
 constexpr const char* kFloat32ArrayStorageFormatName = "float32";
 
 class CORE_EXPORT ImageData final : public GarbageCollectedFinalized<ImageData>,
                                     public ScriptWrappable,
                                     public ImageBitmapSource {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
@@ skipping 59 matching lines @@
   static bool validateConstructorArguments(const unsigned&,
                                            const IntSize* = nullptr,
                                            const unsigned& = 0,
                                            const unsigned& = 0,
                                            const DOMArrayBufferView* = nullptr,
                                            ExceptionState* = nullptr);
 
  private:
   ImageData(const IntSize&,
             DOMArrayBufferView*,
-            const ImageDataColorSettings* = nullptr);
+            const ImageDataColorSettings* = nullptr,
+            StorageFormatSource = kStorageFormatFromColorSettings);
 
   IntSize m_size;
   ImageDataColorSettings m_colorSettings;
   ImageDataArray m_dataUnion;
   Member<DOMUint8ClampedArray> m_data;
   Member<DOMUint16Array> m_dataU16;
   Member<DOMFloat32Array> m_dataF32;
 
   static DOMArrayBufferView* allocateAndValidateDataArray(
       const unsigned&,
       ImageDataStorageFormat,
       ExceptionState* = nullptr);
 };
 
 }  // namespace blink
 
 #endif  // ImageData_h