PlzNavigate: Implement RequestNavigation on the renderer side

content/common/frame_messages.h

 // Copyright 2013 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 interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/frame_message_enums.h"
@@ skipping 448 matching lines @@
 
 #elif defined(OS_MACOSX)
 
 // External popup menus.
 IPC_MESSAGE_ROUTED1(FrameMsg_SelectPopupMenuItem,
                     int /* selected index, -1 means no selection */)
 
 #endif
 
 // PlzNavigate
+// Tells the renderer that a navigation has been requested.
+IPC_MESSAGE_ROUTED2(FrameMsg_RequestNavigation,
+                    content::CommonNavigationParams, /* common_params */
+                    content::RequestNavigationParams /* request_params */)
+
+// PlzNavigate
 // Tells the renderer that a navigation is ready to commit.  The renderer should
 // request |stream_url| to get access to the stream containing the body of the
 // response.
 IPC_MESSAGE_ROUTED4(FrameMsg_CommitNavigation,
                     content::ResourceResponseHead, /* response */
                     GURL, /* stream_url */
                     content::CommonNavigationParams, /* common_params */
                     content::CommitNavigationParams /* commit_params */)
 
 // -----------------------------------------------------------------------------
@@ skipping 270 matching lines @@
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)
 
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif