Added prerendering to omnibox.

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 592c0e3c1004ce28ab3e541f076ece07c9befd02..860b89a06295cd9e21d547d54e4142572df5a8b3 100644
--- a/chrome/browser/instant/instant_controller.cc
+++ b/chrome/browser/instant/instant_controller.cc
@@ -15,6 +15,7 @@
 #include "chrome/browser/instant/promo_counter.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_service.h"
@@ -679,7 +680,7 @@ bool InstantController::ShouldShowPreviewFor(const AutocompleteMatch& match,
   if (match.destination_url.SchemeIs(chrome::kJavaScriptScheme))
     return false;
 
-  // Extension keywords don't have a real destionation URL.
+  // Extension keywords don't have a real destination URL.
   if (match.template_url && match.template_url->IsExtensionKeyword())
     return false;
 
@@ -693,6 +694,14 @@ bool InstantController::ShouldShowPreviewFor(const AutocompleteMatch& match,
       match.type != AutocompleteMatch::SEARCH_HISTORY &&
       match.type != AutocompleteMatch::SEARCH_SUGGEST &&
       match.type != AutocompleteMatch::SEARCH_OTHER_ENGINE) {
+    // Start Prerender of this page instead.
+    CommandLine* cl = CommandLine::ForCurrentProcess();

[sky, 2011/06/20 19:29:24]

I don't like that this method has a side effect. Can you instead make it return
an enum indicating why it shouldn't show the preview and key off that.

[dominich, 2011/06/20 20:48:40]

Done.

+    if (cl->HasSwitch(switches::kPrerenderFromOmnibox)) {
+      prerender::PrerenderManager* prerender_manager =
+          tab_contents_->profile()->GetPrerenderManager();
+      if (prerender_manager)
+        prerender_manager->AddPrerenderWithNoTag(match.destination_url);
+    }
     return false;
   }