Consolidate UpdateFrameInfo and SwapCompositorFrame.

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 "base/process.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
@@ skipping 2323 matching lines @@
                     gfx::RectF /* active_rect */)
 
 // Start an android intent with the given URI.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_StartContentIntent,
                     GURL /* content_url */)
 
 // Message sent when the renderer changed the background color for the view.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_DidChangeBodyBackgroundColor,
                     uint32  /* bg_color */)
 
-// Information about current document scroll, scale and size. Sent on a
-// best-effort basis.
-IPC_MESSAGE_ROUTED5(ViewHostMsg_UpdateFrameInfo,
-                    gfx::Vector2d /* scroll_offset */,
-                    float /* page_scale_factor */,
-                    float /* min_page_scale_factor */,
-                    float /* max_page_scale_factor */,
-                    gfx::Size /* content_size */)
-
 // This message is an ACK that the batch state change has been received by
 // the renderer and all IME related messages should be processed accordingly.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_ImeBatchStateChanged_ACK,
                     bool /* is_begin */)
 
 #elif defined(OS_MACOSX)
 // Request that the browser load a font into shared memory for us.
 IPC_SYNC_MESSAGE_CONTROL1_3(ViewHostMsg_LoadFont,
                            FontDescriptor /* font to load */,
                            uint32 /* buffer size */,
@@ skipping 32 matching lines @@
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             string16 /* characters */)
 #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.