Fix out-of-memory crashes related to ArrayBuffer allocation

third_party/WebKit/Source/wtf/Uint8ClampedArray.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
@@ skipping 17 matching lines @@
 #ifndef Uint8ClampedArray_h
 #define Uint8ClampedArray_h
 
 #include "wtf/Uint8Array.h"
 #include "wtf/MathExtras.h"
 
 namespace WTF {
 
 class Uint8ClampedArray final : public Uint8Array {
 public:
-    static inline PassRefPtr<Uint8ClampedArray> create(unsigned length);
-    static inline PassRefPtr<Uint8ClampedArray> create(const unsigned char* array, unsigned length);
+    static inline PassRefPtr<Uint8ClampedArray> createOrNull(unsigned length);
+    static inline PassRefPtr<Uint8ClampedArray> createOrNull(const unsigned char* array, unsigned length);
+    static inline PassRefPtr<Uint8ClampedArray> deprecatedCreateOrCrash(const unsigned char* array, unsigned length);
     static inline PassRefPtr<Uint8ClampedArray> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
 
     using TypedArrayBase<unsigned char>::set;
     inline void set(unsigned index, double value);
 
     ViewType type() const override
     {
         return TypeUint8Clamped;
     }
 
 private:
     inline Uint8ClampedArray(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
     // Make constructor visible to superclass.
     friend class TypedArrayBase<unsigned char>;
 };
 
-PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(unsigned length)
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::createOrNull(unsigned length)
 {
-    return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(length);
+    return TypedArrayBase<unsigned char>::createOrNull<Uint8ClampedArray>(length);
 }
 
-PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(const unsigned char* array, unsigned length)
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::createOrNull(const unsigned char* array, unsigned length)
 {
-    return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(array, length);
+    return TypedArrayBase<unsigned char>::createOrNull<Uint8ClampedArray>(array, length);
+}
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::deprecatedCreateOrCrash(const unsigned char* array, unsigned length)
+{
+    return TypedArrayBase<unsigned char>::deprecatedCreateOrCrash<Uint8ClampedArray>(array, length);
 }
 
 PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
 {
     return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(buffer, byteOffset, length);
 }
 
 void Uint8ClampedArray::set(unsigned index, double value)
 {
     if (index >= m_length)
         return;
     if (std::isnan(value) || value < 0)
         value = 0;
     else if (value > 255)
         value = 255;
     data()[index] = static_cast<unsigned char>(lrint(value));
 }
 
 Uint8ClampedArray::Uint8ClampedArray(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
 : Uint8Array(buffer, byteOffset, length)
 {
 }
 
 } // namespace WTF
 
 using WTF::Uint8ClampedArray;
 
 #endif // Uint8ClampedArray_h