Add IPC messages to transfer compositor protos

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/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
@@ skipping 957 matching lines @@
 // Sent by the browser to ask the renderer to redraw.
 // If |request_id| is not zero, it is added to the forced frame's latency info
 // as ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT.
 IPC_MESSAGE_ROUTED1(ViewMsg_ForceRedraw,
                     int /* request_id */)
 
 // Sent by the browser when the renderer should generate a new frame.
 IPC_MESSAGE_ROUTED1(ViewMsg_BeginFrame,
                     cc::BeginFrameArgs /* args */)
 
+// Sent by the browser to deliver a compositor proto to the renderer.
+IPC_MESSAGE_ROUTED1(ViewMsg_HandleCompositorProto,
+                    std::vector<char> /* proto */)
+
 // -----------------------------------------------------------------------------
 // Messages sent from the renderer to the browser.
 
 // Sent by renderer to request a ViewMsg_BeginFrame message for upcoming
 // display events. If |enabled| is true, the BeginFrame message will continue
 // to be be delivered until the notification is disabled.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_SetNeedsBeginFrames,
                     bool /* enabled */)
 
 // Sent by the renderer when it is creating a new window.  The browser creates a
@@ skipping 350 matching lines @@
 // Sent once a paint happens after the first non empty layout. In other words,
 // after the frame widget has painted something.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidFirstVisuallyNonEmptyPaint)
 
 // Send after a paint happens after any page commit, including a blank one.
 // TODO(kenrb): This, and all ViewHostMsg_* messages that actually pertain to
 // RenderWidget(Host), should be renamed to WidgetHostMsg_*.
 // See https://crbug.com/537793.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_DidFirstPaintAfterLoad)
 
+// Sent by the renderer to deliver a compositor proto to the browser.
+IPC_MESSAGE_ROUTED1(ViewHostMsg_ForwardCompositorProto,
+                    std::vector<char> /* proto */)
+
 #if defined(OS_ANDROID)
 // Response to ViewMsg_FindMatchRects.
 //
 // |version| will contain the current version number of the renderer's find
 // match list (incremented whenever they change), which should be passed in the
 // next call to ViewMsg_FindMatchRects.
 //
 // |rects| will either contain a list of the enclosing rects of all matches
 // found by the most recent Find operation, or will be empty if |version| is not
 // greater than the |current_version| passed to ViewMsg_FindMatchRects (hence
@@ skipping 40 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.