(DEPRECATED) Send navigation_start to browser process in DidStartProvisionalLoad

third_party/WebKit/public/web/WebDataSource.h

Index: third_party/WebKit/public/web/WebDataSource.h
diff --git a/third_party/WebKit/public/web/WebDataSource.h b/third_party/WebKit/public/web/WebDataSource.h
index 29d725fdae621a256d9ec0b7c39442f81e9a456c..ab7ad785cf2edb1916f7ea6a3f6ec8ac48812ff9 100644
--- a/third_party/WebKit/public/web/WebDataSource.h
+++ b/third_party/WebKit/public/web/WebDataSource.h
@@ -104,6 +104,12 @@ public:
     // the user may have already recorded the original value.
     virtual void setNavigationStartTime(double) = 0;
 
+    // Gets the navigation start time. Useful if the embedder wants the
+    // navigation start time in the reported monotonicallyIncreasingTime format
+    // rather than the epoch time reported by WebPerformance, or they want the
+    // value they set in setNavigationStartTime.
+    virtual double getNavigationStartTime() = 0;
+
 protected:
     ~WebDataSource() { }
 };