Add a FrameHostMsg_BeginNavigation IPC

content/browser/frame_host/render_frame_host_impl.cc

 // 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.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
@@ skipping 317 matching lines @@
                         OnJavaScriptExecuteResponse)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunJavaScriptMessage,
                                     OnRunJavaScriptMessage)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunBeforeUnloadConfirm,
                                     OnRunBeforeUnloadConfirm)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidAccessInitialDocument,
                         OnDidAccessInitialDocument)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisownOpener, OnDidDisownOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_BeginNavigation,
+                        OnBeginNavigation)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_RequestPermission,
                         OnRequestDesktopNotificationPermission)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Show,
                         OnShowDesktopNotification)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Cancel,
                         OnCancelDesktopNotification)
     IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
                         OnTextSurroundingSelectionResponse)
   IPC_END_MESSAGE_MAP()
 
@@ skipping 414 matching lines @@
                          WebTextDirectionToChromeTextDirection(
                              title_direction));
 }
 
 void RenderFrameHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
   // This message is only sent for top-level frames. TODO(avi): when frame tree
   // mirroring works correctly, add a check here to enforce it.
   delegate_->UpdateEncoding(this, encoding_name);
 }
 
+void RenderFrameHostImpl::OnBeginNavigation(
+    const FrameHostMsg_BeginNavigation_Params& params) {

[davidben, 2014/07/09 15:14:28]

Should we guard at this point behind a switch or something, in case we skimp on
this or that security check mid-development? Probably good to avoid problems in
case of a compromised renderer.

[clamy, 2014/07/15 15:32:14]

Good point. I put it behind a compile flag.

+  frame_tree_node()->render_manager()->BeginNavigation(params);
+}
+
 void RenderFrameHostImpl::SetPendingShutdown(const base::Closure& on_swap_out) {
   render_view_host_->SetPendingShutdown(on_swap_out);
 }
 
 bool RenderFrameHostImpl::CanCommitURL(const GURL& url) {
   // TODO(creis): We should also check for WebUI pages here.  Also, when the
   // out-of-process iframes implementation is ready, we should check for
   // cross-site URLs that are not allowed to commit in this process.
 
   // Give the client a chance to disallow URLs from committing.
@@ skipping 160 matching lines @@
       FROM_HERE,
       base::Bind(
           &TransitionRequestManager::SetHasPendingTransitionRequest,
           base::Unretained(TransitionRequestManager::GetInstance()),
           GetProcess()->GetID(),
           routing_id_,
           has_pending_request));
 }
 
 }  // namespace content