WebView: Cleanup class/struct forward declarations

android_webview/native/aw_contents_io_thread_client_impl.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 ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_
 
 #include <stdint.h>
 
 #include "android_webview/browser/aw_contents_io_thread_client.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 
-class GURL;
-
 namespace content {
-class ResourceRequestInfo;
 class WebContents;
 }
 
 namespace net {
 class URLRequest;
 }
 
 namespace android_webview {
 
-class AwWebResourceResponse;
-
 class AwContentsIoThreadClientImpl : public AwContentsIoThreadClient {
  public:
    // Called when AwContents is created before there is a Java client.
   static void RegisterPendingContents(content::WebContents* web_contents);
 
   // Associates the |jclient| instance (which must implement the
   // AwContentsIoThreadClient Java interface) with the |web_contents|.
   // This should be called at most once per |web_contents|.
   static void Associate(content::WebContents* web_contents,
                         const base::android::JavaRef<jobject>& jclient);
@@ skipping 29 matching lines @@
   bool pending_association_;
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
   base::android::ScopedJavaGlobalRef<jobject> bg_thread_client_object_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContentsIoThreadClientImpl);
 };
 
 } // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_