Remove WebContentsObserver::DidCommitNavigation

content/browser/frame_host/navigation_handle_impl.cc

Index: content/browser/frame_host/navigation_handle_impl.cc
diff --git a/content/browser/frame_host/navigation_handle_impl.cc b/content/browser/frame_host/navigation_handle_impl.cc
index f24999058b5f36021c507f91087d45f01b5435a8..7734ce2bb7e1d97415af0cc81804e65914342af4 100644
--- a/content/browser/frame_host/navigation_handle_impl.cc
+++ b/content/browser/frame_host/navigation_handle_impl.cc
@@ -25,6 +25,7 @@ NavigationHandleImpl::NavigationHandleImpl(const GURL& url,
       net_error_code_(net::OK),
       state_(DID_START),
       is_main_frame_(is_main_frame),
+      render_frame_host_(nullptr),
       is_transferring_(false),
       delegate_(delegate) {
   delegate_->DidStartNavigation(this);
@@ -46,11 +47,18 @@ bool NavigationHandleImpl::IsInMainFrame() const {
   return is_main_frame_;
 }
 
-bool NavigationHandleImpl::HasCommittedDocument() const {
-  return state_ == DID_COMMIT;
+RenderFrameHostImpl* NavigationHandleImpl::GetRenderFrameHost() {
+  CHECK(state_ >= READY_TO_COMMIT)
+      << "This accessor should only be called "
+         "after the navigation is ready to commit.";
+  return render_frame_host_;
 }
 
-bool NavigationHandleImpl::HasCommittedErrorPage() const {
+bool NavigationHandleImpl::HasCommitted() {
+  return state_ == DID_COMMIT || state_ == DID_COMMIT_ERROR_PAGE;
+}
+
+bool NavigationHandleImpl::IsErrorPage() {
   return state_ == DID_COMMIT_ERROR_PAGE;
 }
 
@@ -59,9 +67,19 @@ void NavigationHandleImpl::DidRedirectNavigation(const GURL& new_url) {
   delegate_->DidRedirectNavigation(this);
 }
 
-void NavigationHandleImpl::DidCommitNavigation() {
+void NavigationHandleImpl::ReadyToCommitNavigation(
+    RenderFrameHostImpl* render_frame_host) {
+  CHECK(!render_frame_host_);
+  render_frame_host_ = render_frame_host;
+  state_ = READY_TO_COMMIT;
+  delegate_->ReadyToCommitNavigation(this);
+}
+
+void NavigationHandleImpl::DidCommitNavigation(
+    RenderFrameHostImpl* render_frame_host) {
+  CHECK_IMPLIES(render_frame_host_, render_frame_host_ == render_frame_host);
+  render_frame_host_ = render_frame_host;
   state_ = net_error_code_ == net::OK ? DID_COMMIT : DID_COMMIT_ERROR_PAGE;
-  delegate_->DidCommitNavigation(this);
 }
 
 }  // namespace content