Implement {Start,Stop}CapturingKeyStrokes for Instant.

chrome/browser/ui/browser_instant_controller.cc

Index: chrome/browser/ui/browser_instant_controller.cc
diff --git a/chrome/browser/ui/browser_instant_controller.cc b/chrome/browser/ui/browser_instant_controller.cc
index 3cab847aa5d61154cee38fd1bcd085b849f37069..b4bcf5bb8da554bcc7b7102f067131291c7506d6 100644
--- a/chrome/browser/ui/browser_instant_controller.cc
+++ b/chrome/browser/ui/browser_instant_controller.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/omnibox/location_bar.h"
+#include "chrome/browser/ui/omnibox/omnibox_view.h"
 #include "chrome/browser/ui/search/search.h"
 #include "chrome/browser/ui/search/search_model.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
@@ -115,8 +116,7 @@ void BrowserInstantController::CommitInstant(TabContents* preview,
 
 void BrowserInstantController::SetInstantSuggestion(
     const InstantSuggestion& suggestion) {
-  if (browser_->window()->GetLocationBar())
-    browser_->window()->GetLocationBar()->SetInstantSuggestion(suggestion);
+  browser_->window()->GetLocationBar()->SetInstantSuggestion(suggestion);
 }
 
 gfx::Rect BrowserInstantController::GetInstantBounds() {
@@ -129,6 +129,13 @@ void BrowserInstantController::InstantPreviewFocused() {
       instant_.GetPreviewContents()->web_contents());
 }
 
+void BrowserInstantController::SetInvisibleFocus() {
+  OmniboxView* omnibox_view = browser_->window()->GetLocationBar()->
+      GetLocationEntry();
+  omnibox_view->SetFocus();
+  omnibox_view->model()->SetFocusVisibility(false);
+}
+
 TabContents* BrowserInstantController::GetActiveTabContents() const {
   return browser_->tab_strip_model()->GetActiveTabContents();
 }