Make platform/image-decoders to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h

Index: third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h
diff --git a/third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h b/third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h
index 41808329777bdb71c82e895ca0c2ca5bb6ae47f2..7489a35ac5f2c9834f81d334e7aae2585d5c94e5 100644
--- a/third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h
+++ b/third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h
@@ -33,6 +33,8 @@
 
 #include "platform/PlatformExport.h"
 #include "platform/SharedBuffer.h"
+#include "wtf/Allocator.h"
+#include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
@@ -42,7 +44,9 @@ namespace blink {
 // therefore minimizes the cost of memory copying when the decoders
 // repeatedly read from a buffer that is continually growing due to network
 // traffic.
-class PLATFORM_EXPORT FastSharedBufferReader {
+class PLATFORM_EXPORT FastSharedBufferReader final {
+    DISALLOW_NEW();
+    WTF_MAKE_NONCOPYABLE(FastSharedBufferReader);
 public:
     FastSharedBufferReader(PassRefPtr<SharedBuffer> data);