Prevent webview tags from navigating outside web-safe schemes.

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/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"
@@ skipping 21 matching lines @@
     InterceptNavigationResourceThrottle::CheckOnUIThreadCallback
         should_ignore_callback,
     base::Callback<void(bool)> callback) {
 
   bool should_ignore_navigation = false;
   RenderViewHost* rvh =
       RenderViewHost::FromID(render_process_id, render_view_id);
 
   if (rvh) {
     GURL validated_url(url);
-    RenderViewHost::FilterURL(
-        rvh->GetProcess()->GetID(),
-        false,
-        &validated_url);
+    RenderViewHost::FilterURL(rvh->GetProcess(), false, &validated_url);
 
     should_ignore_navigation = should_ignore_callback.Run(
         rvh, validated_url, referrer, has_user_gesture);
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(callback, should_ignore_navigation));
 }
@@ skipping 60 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   if (should_ignore_navigation) {
     controller()->CancelAndIgnore();
   } else {
     controller()->Resume();
   }
 }
 
 } // namespace navigation_interception