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

chrome/browser/instant/instant_controller.cc

Index: chrome/browser/instant/instant_controller.cc
diff --git a/chrome/browser/instant/instant_controller.cc b/chrome/browser/instant/instant_controller.cc
index d3e654553b22918bb55bde6dfd1710d6fe874a4d..dfcc3ba644570d4ce2ac4867104dc9a9342fb3d5 100644
--- a/chrome/browser/instant/instant_controller.cc
+++ b/chrome/browser/instant/instant_controller.cc
@@ -810,6 +810,11 @@ void InstantController::InstantLoaderAboutToNavigateMainFrame(const GURL& url) {
     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;