Be a little more precise in the wording of comments for process death.

content/public/browser/web_contents_observer.h

Index: content/public/browser/web_contents_observer.h
diff --git a/content/public/browser/web_contents_observer.h b/content/public/browser/web_contents_observer.h
index 501b94efb0c95f2c5f357ab95e6d74740f66aabd..0f87a0dcfaf0ac23ef9cb756464cf80a72310a38 100644
--- a/content/public/browser/web_contents_observer.h
+++ b/content/public/browser/web_contents_observer.h
@@ -97,13 +97,16 @@ class CONTENT_EXPORT WebContentsObserver : public IPC::Listener,
   // just swapped out.
   virtual void RenderViewDeleted(RenderViewHost* render_view_host) {}
 
-  // This method is invoked when the process for the current RenderView crashes.
-  // The WebContents continues to use the RenderViewHost, e.g. when the user
-  // reloads the current page. When the RenderViewHost itself is deleted, the
-  // RenderViewDeleted method will be invoked.
+  // This method is invoked when the process for the current RenderView exits

[nasko, 2015/07/10 07:48:54]

"the process for the current main RenderFrameHost". Also, can we go with
s/RenderViewHost/RenderFrameHost/ in this entire comment, since you are updating
it anyway?

[Avi (use Gerrit), 2015/07/10 15:29:20]

Done.

+  // (usually by crashing, though possibly by other means). The WebContents
+  // continues to use the RenderViewHost, e.g. when the user reloads the current
+  // page. When the RenderViewHost itself is deleted, the RenderViewDeleted
+  // method will be invoked.
   //
-  // Note that this is equivalent to
-  // RenderProcessHostObserver::RenderProcessExited().
+  // Note that this is triggered upstream through
+  // RenderProcessHostObserver::RenderProcessExited(); for code that doesn't
+  // otherwise need to be a WebContentsObserver, consider whether that API might

[nasko, 2015/07/10 07:48:55]

I'd word it a bit more strongly. Unless they have to be WCO, they are better off
monitoring for process crashing through the process observer :).

[Avi (use Gerrit), 2015/07/10 15:29:20]

Done.

+  // be a better choice.
   virtual void RenderProcessGone(base::TerminationStatus status) {}
 
   // This method is invoked when a WebContents swaps its visible RenderViewHost