Componentize IgnoreNavigationResourceThrottle and add chrome and webview specific implementations.

chrome/browser/component/navigation_interception/intercept_navigation_resource_throttle.cc

 // 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.
 
-#include "chrome/browser/renderer_host/intercept_navigation_resource_throttle.h"
+#include "chrome/browser/component/navigation_interception/intercept_navigation_resource_throttle.h"
 
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/common/referrer.h"
 #include "net/url_request/url_request.h"
 
 using content::BrowserThread;
 using content::ChildProcessSecurityPolicy;
 using content::Referrer;
 using content::RenderViewHost;
 using content::ResourceRequestInfo;
 
+namespace navigation_interception {
+
 namespace {
 
 void CheckIfShouldIgnoreNavigationOnUIThread(
     int render_process_id,
     int render_view_id,
     const GURL& url,
     const Referrer& referrer,
-    bool is_content_initiated,
+    bool has_user_gesture,
     InterceptNavigationResourceThrottle::CheckOnUIThreadCallback
         should_ignore_callback,
     base::Callback<void(bool)> callback) {
 
   RenderViewHost* rvh =
       RenderViewHost::FromID(render_process_id, render_view_id);
 
   GURL validated_url(url);
   RenderViewHost::FilterURL(
       rvh->GetProcess()->GetID(),
       false,
       &validated_url);
 
   bool should_ignore_navigation = false;
   should_ignore_navigation = should_ignore_callback.Run(
-      rvh, validated_url, referrer, is_content_initiated);
+      rvh, validated_url, referrer, has_user_gesture);
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(callback, should_ignore_navigation));
 }
 
 } // namespace
 
 InterceptNavigationResourceThrottle::InterceptNavigationResourceThrottle(
@@ skipping 54 matching lines @@
 void InterceptNavigationResourceThrottle::OnResultObtained(
     bool should_ignore_navigation) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   if (should_ignore_navigation) {
     controller()->CancelAndIgnore();
   } else {
     controller()->Resume();
   }
 }
+
+} // namespace navigation_interception