Commit instant loader when the instant page navigates away from instant URL.

content/browser/web_contents/web_contents_impl.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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 1542 matching lines @@
 
 void WebContentsImpl::ResizeDueToAutoResize(const gfx::Size& new_size) {
   if (delegate_)
     delegate_->ResizeDueToAutoResize(this, new_size);
 }
 
 WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) {
   if (!delegate_)
     return NULL;
 
+  FOR_EACH_OBSERVER(WebContentsObserver, observers_,
+                    AboutToOpenURL(params.url));
+
   WebContents* new_contents = delegate_->OpenURLFromTab(this, params);
   // Notify observers.
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     DidOpenURL(params.url, params.referrer,
                                params.disposition, params.transition));
   return new_contents;
 }
 
 bool WebContentsImpl::Send(IPC::Message* message) {
   if (!GetRenderViewHost()) {
@@ skipping 1844 matching lines @@
 
 BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() {
   return browser_plugin_guest_.get();
 }
 
 BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() {
   return browser_plugin_embedder_.get();
 }
 
 }  // namespace content