PlzNavigate: implement CommitNavigation on the browser side

content/browser/frame_host/render_frame_host_manager.cc

Index: content/browser/frame_host/render_frame_host_manager.cc
diff --git a/content/browser/frame_host/render_frame_host_manager.cc b/content/browser/frame_host/render_frame_host_manager.cc
index 0d95e1e361c7f630c4187a8eec3a49fa0828b8a0..e9dc8f023c21025187091e26deebbefc0ebeb888 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -48,19 +48,43 @@ namespace content {
 namespace {
 
 // PlzNavigate
+// Returns the net load flags to use based on the navigation type.
+int LoadFlagFromNavigationType(FrameMsg_Navigate_Type::Value navigation_type) {
+  int load_flags = net::LOAD_NORMAL;
+  switch (navigation_type) {
+    case FrameMsg_Navigate_Type::RELOAD:
+    case FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL:
+      load_flags |= net::LOAD_VALIDATE_CACHE;
+      break;
+    case FrameMsg_Navigate_Type::RELOAD_IGNORING_CACHE:
+      load_flags |= net::LOAD_BYPASS_CACHE;
+      break;
+    case FrameMsg_Navigate_Type::RESTORE:
+      load_flags |= net::LOAD_PREFERRING_CACHE;
+      break;
+    case FrameMsg_Navigate_Type::RESTORE_WITH_POST:
+      load_flags |= net::LOAD_ONLY_FROM_CACHE;
+      break;
+    case FrameMsg_Navigate_Type::NORMAL:
+    default :
+      break;
+  }
+  return load_flags;
+}
+
+// PlzNavigate
 // Simulates a renderer response to a navigation request when there is no live
 // renderer.
 FrameHostMsg_BeginNavigation_Params BeginNavigationFromNavigate(
-    const FrameMsg_Navigate_Params& navigate_params) {
+    const FrameMsg_Navigate_Params& navigate_params,
+    FrameMsg_Navigate_Type::Value navigation_type) {
   FrameHostMsg_BeginNavigation_Params begin_navigation_params;
   begin_navigation_params.method = navigate_params.is_post ? "POST" : "GET";
   begin_navigation_params.url = navigate_params.url;
   begin_navigation_params.referrer =
       Referrer(navigate_params.referrer.url, navigate_params.referrer.policy);
-
-  // TODO(clamy): This should be modified to take into account caching policy
-  // requirements (eg for POST reloads).
-  begin_navigation_params.load_flags = net::LOAD_NORMAL;
+  begin_navigation_params.load_flags =
+      LoadFlagFromNavigationType(navigation_type);
 
   // TODO(clamy): Post data from the browser should be put in the request body.
 
@@ -73,6 +97,23 @@ FrameHostMsg_BeginNavigation_Params BeginNavigationFromNavigate(
   return begin_navigation_params;
 }
 
+void UpdateCommitNavParamsFromBeginNavParams(
+    const FrameHostMsg_BeginNavigation_Params& begin_navigation_params,
+    FrameMsg_CommitNavigation_Params* commit_navigation_params) {
+  commit_navigation_params->referrer = begin_navigation_params.referrer;
+  commit_navigation_params->transition =
+      begin_navigation_params.transition_type;
+}
+
+void UpdateCommitNavParamsFromCommitInfo(
+    const NavigationBeforeCommitInfo& commit_info,
+    FrameMsg_CommitNavigation_Params* commit_navigation_params) {
+  commit_navigation_params->url = commit_info.navigation_url;
+  commit_navigation_params->stream_url = commit_info.stream_url;
+  commit_navigation_params->browser_navigation_start =
+      commit_info.browser_navigation_start;
+}
+
 }  // namespace
 
 bool RenderFrameHostManager::ClearRFHsPendingShutdown(FrameTreeNode* node) {
@@ -548,10 +589,11 @@ void RenderFrameHostManager::ResetProxyHosts() {
 
 // PlzNavigate
 bool RenderFrameHostManager::RequestNavigation(
-    const NavigationEntryImpl& entry,
+    scoped_ptr<FrameMsg_CommitNavigation_Params> commit_navigation_params,
     const FrameMsg_Navigate_Params& navigate_params) {
   CHECK(CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableBrowserSideNavigation));
+  commit_navigation_params_ = commit_navigation_params.Pass();
   // TODO(clamy): replace RenderViewHost::IsRenderViewLive by
   // RenderFrameHost::IsLive.
   if (render_frame_host_->render_view_host()->IsRenderViewLive())
@@ -559,7 +601,8 @@ bool RenderFrameHostManager::RequestNavigation(
     return true;
 
   // The navigation request is sent directly to the IO thread.
-  OnBeginNavigation(BeginNavigationFromNavigate(navigate_params));
+  OnBeginNavigation(BeginNavigationFromNavigate(
+      navigate_params, commit_navigation_params_->navigation_type));
   return true;
 }
 
@@ -586,6 +629,10 @@ void RenderFrameHostManager::OnBeginNavigation(
   navigation_request_.reset(new NavigationRequest(
       info, frame_tree_node_->frame_tree_node_id()));
   navigation_request_->BeginNavigation(params.request_body);
+
+  DCHECK(commit_navigation_params_.get());
+  UpdateCommitNavParamsFromBeginNavParams(
+      params, commit_navigation_params_.get());
 }
 
 // PlzNavigate
@@ -618,8 +665,10 @@ void RenderFrameHostManager::CommitNavigation(
       render_frame_host_->render_view_host()->AttachToFrameTree();
   }
 
+  DCHECK(commit_navigation_params_.get());
+  UpdateCommitNavParamsFromCommitInfo(info, commit_navigation_params_.get());
   frame_tree_node_->navigator()->CommitNavigation(
-      render_frame_host_.get(), info);
+      render_frame_host_.get(), commit_navigation_params_.Pass());
 }
 
 void RenderFrameHostManager::Observe(