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

content/common/view_messages.h

 // Copyright (c) 2011 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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/common_param_traits.h"
@@ skipping 1755 matching lines @@
 
 // Updates the minimum/maximum allowed zoom percent for this tab from the
 // default values.  If |remember| is true, then the zoom setting is applied to
 // other pages in the site and is saved, otherwise it only applies to this
 // tab.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_UpdateZoomLimits,
                     int /* minimum_percent */,
                     int /* maximum_percent */,
                     bool /* remember */)
 
+// 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 */)
+
+
 // Asks the browser to create a block of shared memory for the renderer to
 // fill in and pass back to the browser.
 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_AllocateSharedMemoryBuffer,
                            uint32 /* buffer size */,
                            base::SharedMemoryHandle /* browser handle */)
 
 // Notify the browser that this render process can or can't be suddenly
 // terminated.
 IPC_MESSAGE_CONTROL1(ViewHostMsg_SuddenTerminationChanged,
                      bool /* enabled */)
@@ skipping 176 matching lines @@
 // Stores new inspector setting in the profile.
 // TODO(jam): this should be in the chrome module
 IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateInspectorSetting,
                     std::string,  /* key */
                     std::string /* value */)
 
 // Message sent from the renderer to the browser to notify it of events which
 // may lead to the cancellation of a prerender. The message is sent only when
 // the renderer is in prerender mode.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_MaybeCancelPrerenderForHTML5Media)