Revert of Remove a bunch of NPAPI quirks and related support code

content/common/view_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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 1037 matching lines @@
 // Message sent from renderer to the browser when focus changes inside the
 // webpage. The first parameter says whether the newly focused element needs
 // keyboard input (true for textfields, text areas and content editable divs).
 // The second parameter is the node bounds relative to RenderWidgetHostView.
 IPC_MESSAGE_ROUTED2(ViewHostMsg_FocusedNodeChanged,
                     bool /* is_editable_node */,
                     gfx::Rect /* node_bounds */)
 
 IPC_MESSAGE_ROUTED1(ViewHostMsg_SetCursor, content::WebCursor)
 
+#if defined(OS_WIN)
+IPC_MESSAGE_ROUTED1(ViewHostMsg_WindowlessPluginDummyWindowCreated,
+                    gfx::NativeViewId /* dummy_activation_window */)
+
+IPC_MESSAGE_ROUTED1(ViewHostMsg_WindowlessPluginDummyWindowDestroyed,
+                    gfx::NativeViewId /* dummy_activation_window */)
+#endif
+
 // Get the list of proxies to use for |url|, as a semicolon delimited list
 // of "<TYPE> <HOST>:<PORT>" | "DIRECT".
 IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_ResolveProxy,
                             GURL /* url */,
                             bool /* result */,
                             std::string /* proxy list */)
 
 // A renderer sends this to the browser process when it wants to create a
 // worker.  The browser will create the worker process if necessary, and
 // will return the route id on in the reply on success.  On error returns
@@ skipping 245 matching lines @@
 // Instructs the browser to start plugin IME.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_StartPluginIme)
 
 // Receives content of a web page as plain text.
 IPC_MESSAGE_ROUTED1(ViewMsg_GetRenderedTextCompleted, std::string)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.