Index: cc/trees/proxy_timing_history.h |
diff --git a/cc/trees/proxy_timing_history.h b/cc/trees/proxy_timing_history.h |
index 01a92d93a03f160cd424e6703eca3f9ec5e9a5e9..aa806b51890cd35a9213284f15d666c4531e0670 100644 |
--- a/cc/trees/proxy_timing_history.h |
+++ b/cc/trees/proxy_timing_history.h |
@@ -19,8 +19,10 @@ class ProxyTimingHistory { |
base::TimeDelta CommitToActivateDurationEstimate() const; |
void DidBeginMainFrame(); |
- void DidCommit(); |
- void DidActivatePendingTree(); |
+ // Returns BeginMainFrame-to-Commit duration. |
+ base::TimeDelta DidCommit(); |
+ // Returns Commit-to-Activate duration. |
+ base::TimeDelta DidActivatePendingTree(); |
void DidStartDrawing(); |
// Returns draw duration. |
base::TimeDelta DidFinishDrawing(); |