Reland #2 Remove the is_loading_ field from WebContentsImpl

content/browser/frame_host/interstitial_page_impl.cc

Index: content/browser/frame_host/interstitial_page_impl.cc
diff --git a/content/browser/frame_host/interstitial_page_impl.cc b/content/browser/frame_host/interstitial_page_impl.cc
index 1ad4907bda546a2f637cfe9f7be0ad4eddbcecfc..4d071e3c39eed2d5d34834299dfeb2c3fa2c2e23 100644
--- a/content/browser/frame_host/interstitial_page_impl.cc
+++ b/content/browser/frame_host/interstitial_page_impl.cc
@@ -159,15 +159,17 @@ InterstitialPageImpl::InterstitialPageImpl(
       // TODO(creis): We will also need to pass delegates for the RVHM as we
       // start to use it.
       frame_tree_(new InterstitialPageNavigatorImpl(this, controller_),
-                  this, this, this,
+                  this,
+                  this,
+                  this,
                   static_cast<WebContentsImpl*>(web_contents)),
       original_child_id_(web_contents->GetRenderProcessHost()->GetID()),
       original_rvh_id_(web_contents->GetRenderViewHost()->GetRoutingID()),
       should_revert_web_contents_title_(false),
-      web_contents_was_loading_(false),
       resource_dispatcher_host_notified_(false),
       rvh_delegate_view_(new InterstitialPageRVHDelegateView(this)),
       create_view_(true),
+      pause_throbber_(false),
       delegate_(delegate),
       weak_ptr_factory_(this) {
   InitInterstitialPageMap();
@@ -501,6 +503,9 @@ void InterstitialPageImpl::DidNavigate(
     return;
   }
 
+  // The interstitial is not loading anymore so stop the throbber.
+  pause_throbber_ = true;
+
   // The RenderViewHost has loaded its contents, we can show it now.
   if (!controller_->delegate()->IsHidden())
     render_view_host_->GetWidget()->GetView()->Show();
@@ -518,14 +523,6 @@ void InterstitialPageImpl::DidNavigate(
     // Hide the original RVH since we're showing the interstitial instead.
     rwh_view->Hide();
   }
-
-  // Notify the tab we are not loading so the throbber is stopped. It also
-  // causes a WebContentsObserver::DidStopLoading callback that the
-  // AutomationProvider (used by the UI tests) expects to consider a navigation
-  // as complete. Without this, navigating in a UI test to a URL that triggers
-  // an interstitial would hang.
-  web_contents_was_loading_ = controller_->delegate()->IsLoading();
-  controller_->delegate()->SetIsLoading(false, true, NULL);
 }
 
 RendererPreferences InterstitialPageImpl::GetRendererPrefs(
@@ -635,8 +632,8 @@ void InterstitialPageImpl::Proceed() {
   action_taken_ = PROCEED_ACTION;
 
   // Resumes the throbber, if applicable.
-  if (web_contents_was_loading_)
-    controller_->delegate()->SetIsLoading(true, true, NULL);
+  pause_throbber_ = false;
+  controller_->delegate()->DidProceedOnInterstitial();
 
   // If this is a new navigation, the old page is going away, so we cancel any
   // blocked requests for it.  If it is not a new navigation, then it means the