Add onfocuschange to the Extended Search API, with associated isFocused attribute.

chrome/common/render_messages.h

 // Copyright (c) 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 392 matching lines @@
                     std::string /* host */)
 
 // Sent when the profile changes the kSafeBrowsingEnabled preference.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetClientSidePhishingDetection,
                     bool /* enable_phishing_detection */)
 
 // This message asks frame sniffer start.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_StartFrameSniffer,
                     string16 /* frame-name */)
 
+// Tells the renderer the Omnibox focus has changed.
+IPC_MESSAGE_ROUTED1(ChromeViewMsg_SearchBoxFocusChanged, bool /* is_focused */)
+
 // JavaScript related messages -----------------------------------------------
 
 // Notify the JavaScript engine in the render to change its parameters
 // while performing stress testing.
 IPC_MESSAGE_ROUTED2(ChromeViewMsg_JavaScriptStressTestControl,
                     int /* cmd */,
                     int /* param */)
 
 // Asks the renderer to send back FPS.
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_GetFPS)
@@ skipping 316 matching lines @@
 // previous SetCookie message to be processed.
 IPC_SYNC_MESSAGE_ROUTED2_1(ChromeViewHostMsg_GetCookies,
                            GURL /* url */,
                            GURL /* first_party_for_cookies */,
                            std::string /* cookies */)
 
 // Provide the browser process with current renderer framerate.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_FPS,
                      int /* routing id */,
                      float /* frames per second */)