Add a way to cancel deferred navigations in NavigationHandle

components/navigation_interception/intercept_navigation_delegate.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 "components/navigation_interception/intercept_navigation_delegate.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/callback.h"
 #include "components/navigation_interception/intercept_navigation_throttle.h"
@@ skipping 71 matching lines @@
   return static_cast<InterceptNavigationDelegate*>(
       web_contents->GetUserData(kInterceptNavigationDelegateUserDataKey));
 }
 
 // static
 scoped_ptr<content::NavigationThrottle>
 InterceptNavigationDelegate::CreateThrottleFor(
     content::NavigationHandle* handle) {
   return scoped_ptr<content::NavigationThrottle>(
       new InterceptNavigationThrottle(
-          handle, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread)));
+          handle, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread), false));
 }
 
 // static
 void InterceptNavigationDelegate::UpdateUserGestureCarryoverInfo(
     net::URLRequest* request) {
   const content::ResourceRequestInfo* info =
       content::ResourceRequestInfo::ForRequest(request);
   if (!info || !info->HasUserGesture())
     return;
 
@@ skipping 44 matching lines @@
   last_user_gesture_carryover_timestamp_ = base::TimeTicks::Now();
 }
 
 // Register native methods.
 
 bool RegisterInterceptNavigationDelegate(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace navigation_interception