Experimental Extension Keybinding (first cut).

chrome/browser/ui/views/find_bar_host.cc

Index: chrome/browser/ui/views/find_bar_host.cc
===================================================================
--- chrome/browser/ui/views/find_bar_host.cc	(revision 123221)
+++ chrome/browser/ui/views/find_bar_host.cc	(working copy)
@@ -176,16 +176,18 @@
   if (key == ui::VKEY_RETURN && accelerator.IsCtrlDown()) {
     // Ctrl+Enter closes the Find session and navigates any link that is active.
     find_bar_controller_->EndFindSession(FindBarController::kActivateSelection);
+    return true;
   } else if (key == ui::VKEY_ESCAPE) {
     // This will end the Find session and hide the window, causing it to loose
     // focus and in the process unregister us as the handler for the Escape
     // accelerator through the OnWillChangeFocus event.
     find_bar_controller_->EndFindSession(FindBarController::kKeepSelection);
+    return true;
   } else {
     NOTREACHED() << "Unknown accelerator";
   }
 
-  return true;
+  return false;
 }
 
 bool FindBarHost::CanHandleAccelerators() const {
@@ -308,7 +310,8 @@
 
   // Register for Ctrl+Return.
   ui::Accelerator escape(ui::VKEY_RETURN, false, true, false);
-  focus_manager()->RegisterAccelerator(escape, this);
+  focus_manager()->RegisterAccelerator(
+      escape, ui::AcceleratorManager::kNormalPriority, this);
 }
 
 void FindBarHost::UnregisterAccelerators() {