Adds support for ArrayBufferContents with external buffer.

third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp b/third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp
index 687d1d0ecf39e8dd826c7680eb4e3fddaa2eb9b8..015928596b1bb5328d9d7c3de457b503d51006d9 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Initializer.cpp
@@ -389,21 +389,17 @@ class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
   // should respond by throwing a RangeError, per
   // http://www.ecma-international.org/ecma-262/6.0/#sec-createbytedatablock.
   void* Allocate(size_t size) override {
-    void* data;
-    WTF::ArrayBufferContents::allocateMemoryOrNull(
-        size, WTF::ArrayBufferContents::ZeroInitialize, data);
-    return data;
+    return WTF::ArrayBufferContents::allocateMemoryOrNull(
+        size, WTF::ArrayBufferContents::ZeroInitialize);
   }
 
   void* AllocateUninitialized(size_t size) override {
-    void* data;
-    WTF::ArrayBufferContents::allocateMemoryOrNull(
-        size, WTF::ArrayBufferContents::DontInitialize, data);
-    return data;
+    return WTF::ArrayBufferContents::allocateMemoryOrNull(
+        size, WTF::ArrayBufferContents::DontInitialize);
   }
 
   void Free(void* data, size_t size) override {
-    WTF::ArrayBufferContents::freeMemory(data, size);
+    WTF::ArrayBufferContents::freeMemory(data);
   }
 };