Revert of Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/common/render_messages.h

Index: chrome/common/render_messages.h
diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index c93b41dfb8de778274cb315a4dd9b3d6afa7c35d..2943ccbbd932faaf09189b99ecdf8ea3cd35c094 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -249,6 +249,8 @@
                     base::string16 /* identity */,
                     bool /* identity_match */)
 
+IPC_MESSAGE_ROUTED0(ChromeViewMsg_SearchBoxToggleVoiceSearch)
+
 // Sent on process startup to indicate whether this process is running in
 // incognito mode.
 IPC_MESSAGE_CONTROL1(ChromeViewMsg_SetIsIncognitoProcess,
@@ -537,6 +539,11 @@
                     int /* page_seq_no */,
                     GURL /* url */)
 
+// Tells InstantExtended whether the page supports voice search.
+IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_SetVoiceSearchSupported,
+                    int /* page_seq_no */,
+                    bool /* supported */)
+
 // Tells the renderer a list of URLs which should be bounced back to the browser
 // process so that they can be assigned to an Instant renderer.
 IPC_MESSAGE_CONTROL2(ChromeViewMsg_SetSearchURLs,