Cleanup: Removing obsolete chromePrivate.decodeJPEG API.

chrome/renderer/extensions/chrome_private_custom_bindings.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_RENDERER_EXTENSIONS_CHROME_PRIVATE_CUSTOM_BINDINGS_H_
-#define CHROME_RENDERER_EXTENSIONS_CHROME_PRIVATE_CUSTOM_BINDINGS_H_
-#pragma once
-
-#include "chrome/renderer/extensions/chrome_v8_extension.h"
-
-class ExtensionDispatcher;
-
-namespace extensions {
-
-// Implements custom bindings for the chromePrivate API.
-class ChromePrivateCustomBindings : public ChromeV8Extension {
- public:
-  explicit ChromePrivateCustomBindings(
-      ExtensionDispatcher* extension_dispatcher);
-
- private:
-  // Decodes supplied JPEG byte array to image pixel array.
-  static v8::Handle<v8::Value> DecodeJPEG(const v8::Arguments& args);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_RENDERER_EXTENSIONS_CHROME_PRIVATE_CUSTOM_BINDINGS_H_