Update NavigationThrottle::CancelDeferredNavigation() comment to specifically...

Update NavigationThrottle::CancelDeferredNavigation() comment to specifically refer to the ThrottleCheckResult's action.

Bug: 762430
Change-Id: Ieaea62732d604ca56fb3cdb97e96a4ac98e76f15
Reviewed-on: https://chromium-review.googlesource.com/686102Reviewed-by: Nasko Oskov <nasko@chromium.org>
Commit-Queue: Lucas Garron <lgarron@chromium.org>
Cr-Commit-Position: refs/heads/master@{#504803}

content/public/browser/navigation_throttle.h

@@ -165,7 +165,7 @@ class CONTENT_EXPORT NavigationThrottle {
   virtual void Resume();
 
   // Cancels a navigation that was previously deferred by this
-  // NavigationThrottle. |result| should be equal to either:
+  // NavigationThrottle. |result|'s action should be equal to either:
   //  - NavigationThrottle::CANCEL,
   //  - NavigationThrottle::CANCEL_AND_IGNORE, or
   //  - NavigationThrottle::BLOCK_REQUEST_AND_COLLAPSE.