Componentize IgnoreNavigationResourceThrottle and add chrome and webview specific implementations.

android_webview/native/aw_contents.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_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 
 #include <jni.h>
 #include <string>
 
@@ skipping 21 matching lines @@
  public:
   // Returns the AwContents instance associated with |web_contents|, or NULL.
   static AwContents* FromWebContents(content::WebContents* web_contents);
 
   AwContents(JNIEnv* env,
              jobject obj,
              jobject web_contents_delegate,
              bool private_browsing);
   ~AwContents();
 
+  AwWebContentsDelegate* GetAwWebContentsDelegate() const;
+
   // |handler| is an instance of
   // org.chromium.android_webview.AwHttpAuthHandler.
   void onReceivedHttpAuthRequest(const base::android::JavaRef<jobject>& handler,
                                  const std::string& host,
                                  const std::string& realm);
 
   // Methods called from Java.
   jint GetWebContents(JNIEnv* env, jobject obj);
   void Destroy(JNIEnv* env, jobject obj);
   void DocumentHasImages(JNIEnv* env, jobject obj, jobject message);
 
  private:
   JavaObjectWeakGlobalRef java_ref_;
   scoped_ptr<AwContentsContainer> contents_container_;
   scoped_ptr<AwWebContentsDelegate> web_contents_delegate_;
   scoped_ptr<AwRenderViewHostExt> render_view_host_ext_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_