Add IPCs to check web copy/cut/paste for extensions with the appropriate permission bit.

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 5416fed77a5511132b5fb9f691195c87af4f36c2..d7bcc3c4d57078bffd55097cac7838c4170979bf 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -441,6 +441,15 @@ IPC_MESSAGE_ROUTED4(ViewHostMsg_PageTranslated,
 // the renderer is prerendering.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_MaybeCancelPrerenderForHTML5Media)
 
+// Sent by the renderer to check if a URL has permission to trigger a clipboard
+// read/write operation from the DOM.
+IPC_SYNC_MESSAGE_ROUTED1_1(ViewHostMsg_CanTriggerClipboardRead,
+                           GURL /* url */,
+                           bool /* allowed */)
+IPC_SYNC_MESSAGE_ROUTED1_1(ViewHostMsg_CanTriggerClipboardWrite,
+                           GURL /* url */,
+                           bool /* allowed */)
+
 // Suggest results -----------------------------------------------------------
 
 IPC_MESSAGE_ROUTED3(ViewHostMsg_SetSuggestions,