Navigation transitions: Pass is_transition_navigation flag up to the embedder

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 237 matching lines @@
   // The navigationStart time to expose to JS for this navigation.
   IPC_STRUCT_MEMBER(base::TimeTicks, browser_navigation_start)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(FrameHostMsg_OpenURL_Params)
   IPC_STRUCT_MEMBER(GURL, url)
   IPC_STRUCT_MEMBER(content::Referrer, referrer)
   IPC_STRUCT_MEMBER(WindowOpenDisposition, disposition)
   IPC_STRUCT_MEMBER(bool, should_replace_current_entry)
   IPC_STRUCT_MEMBER(bool, user_gesture)
+  IPC_STRUCT_MEMBER(bool, is_transition_navigation)
 IPC_STRUCT_END()
 
 // -----------------------------------------------------------------------------
 // Messages sent from the browser to the renderer.
 
 // When HW accelerated buffers are swapped in an out-of-process child frame
 // renderer, the message is forwarded to the embedding frame to notify it of
 // a new texture available for compositing. When the buffer has finished
 // presenting, a FrameHostMsg_BuffersSwappedACK should be sent back to
 // gpu host that produced this buffer.
@@ skipping 121 matching lines @@
                             int32 /* new_routing_id */)
 
 // Sent by the renderer to the parent RenderFrameHost when a child frame is
 // detached from the DOM.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_Detach)
 
 // Sent by the renderer when the frame becomes focused.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_FrameFocused)
 
 // Sent when the renderer starts a provisional load for a frame.
-IPC_MESSAGE_ROUTED2(FrameHostMsg_DidStartProvisionalLoadForFrame,
+IPC_MESSAGE_ROUTED3(FrameHostMsg_DidStartProvisionalLoadForFrame,
                     int32 /* parent_routing_id */,
-                    GURL /* url */)
+                    GURL /* url */,
+                    bool /* is_transition_navigation */)
 
 // Sent when the renderer fails a provisional load with an error.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidFailProvisionalLoadWithError,
                     FrameHostMsg_DidFailProvisionalLoadWithError_Params)
 
 // Sent when a provisional load on the main frame redirects.
 IPC_MESSAGE_ROUTED3(FrameHostMsg_DidRedirectProvisionalLoad,
                     int /* page_id */,
                     GURL /* source_url*/,
                     GURL /* target_url */)
@@ skipping 214 matching lines @@
 // |endOffset| are the offsets of the selection in the returned |content|.
 IPC_MESSAGE_ROUTED3(FrameHostMsg_TextSurroundingSelectionResponse,
                     base::string16,  /* content */
                     size_t, /* startOffset */
                     size_t /* endOffset */)
 
 // Notifies the browser that the renderer has a pending navigation transition.
 IPC_MESSAGE_CONTROL2(FrameHostMsg_SetHasPendingTransitionRequest,
                      int /* render_frame_id */,
                      bool /* is_transition */)