Add new IPC for searchbox to pipe SearchBox NavigateContentWindow calls to the browser.

chrome/browser/instant/instant_controller.cc

 // Copyright 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/instant/instant_controller.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 792 matching lines @@
 void InstantController::InstantLoaderAboutToNavigateMainFrame(const GURL& url) {
   GURL instant_url(loader_->instant_url());
 
   // Don't commit if the URL being navigated to has the same host and path as
   // the instant URL. This enables the instant page to change the query
   // parameters and fragments of the URL without it navigating.
   if (url.host() != instant_url.host() || url.path() != instant_url.path())
     CommitIfPossible(INSTANT_COMMIT_NAVIGATED);
 }
 
+void InstantController::NavigateToURL(const GURL& url) {

[samarth, 2012/12/12 16:32:27]

Let's check for extended_enabled_ here to be safe.

[Shishir, 2012/12/12 20:04:47]

Done.

+  HideLoader();

[samarth, 2012/12/12 16:32:27]

If (loader_)

[Shishir, 2012/12/12 20:04:47]

This can come from the instant_tab also. Also to remember is that the loader or
the instant_tab will have to be on the stack so we should be ok.

[samarth, 2012/12/12 22:05:36]

When it's coming from InstantTab, there's nothing to hide.  It will be a no-op,
but semantically, I think it would be clearer if this only hid when necessary.

[Shishir, 2012/12/12 22:21:08]

Done.

+  browser_->OpenURLInCurrentTab(url);
+}
+
 bool InstantController::ResetLoader(const TemplateURL* template_url,
                                     const content::WebContents* active_tab) {
   std::string instant_url;
   if (!GetInstantURL(template_url, &instant_url))
     return false;
 
   if (loader_ && loader_->instant_url() == instant_url)
     return true;
 
   HideInternal();
@@ skipping 225 matching lines @@
   }
 
   std::map<std::string, int>::const_iterator iter =
       blacklisted_urls_.find(*instant_url);
   if (iter != blacklisted_urls_.end() &&
       iter->second > kMaxInstantSupportFailures)
     return false;
 
   return true;
 }