Adds paste function to searchbox api and handles paste event on fakebox

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 6001df2b80c1f598d6de90c0db1356032d160985..a3fe03ed6202d8cf694a0ce7b85cacee65ef89e3 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -658,6 +658,10 @@ IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_FocusOmnibox,
                     int /* page_id */,
                     OmniboxFocusState /* state */)
 
+// Tells InstantExtended to paste clipboard content into the omnibox.
+IPC_MESSAGE_ROUTED1(ChromeViewHostMsg_SearchBoxPaste,
+                    int /* page_id */)
+
 // Tells InstantExtended whether the embedded search API is supported.
 // See http://dev.chromium.org/embeddedsearch
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_InstantSupportDetermined,