Set navigationStart correctly for all load types.

third_party/WebKit/public/web/WebLocalFrame.h

Index: third_party/WebKit/public/web/WebLocalFrame.h
diff --git a/third_party/WebKit/public/web/WebLocalFrame.h b/third_party/WebKit/public/web/WebLocalFrame.h
index eceed95ed8cfec2b8f27ca49e79f5b8aa25baa4d..baffee75758c881029f79e42bba8ac3a0f6bb8bd 100644
--- a/third_party/WebKit/public/web/WebLocalFrame.h
+++ b/third_party/WebKit/public/web/WebLocalFrame.h
@@ -133,6 +133,10 @@ public:
     // cross process.
     virtual void setCommittedFirstRealLoad() = 0;
 
+    // Returns true if this is the main frame and its initial document has been
+    // accessed (see also WebFrameClient::didAccessInitialDocument).
+    virtual bool hasAccessedInitialDocument() const = 0;

[dcheng, 2016/07/29 12:50:53]

Can't we just track this bit in RenderFrameImpl rather than plumbing it through
all these layers again?

[Alexander Semashko, 2016/08/12 09:26:34]

Done.

+
     // Orientation Changes ----------------------------------------------------
 
     // Notify the frame that the screen orientation has changed.