Let blink scheduler know when background parsing a document

third_party/WebKit/public/platform/WebViewScheduler.h

Index: third_party/WebKit/public/platform/WebViewScheduler.h
diff --git a/third_party/WebKit/public/platform/WebViewScheduler.h b/third_party/WebKit/public/platform/WebViewScheduler.h
index 37eb20dfc945b1dc57b5dfa7a8d4db98410db2fd..01478442d7cbc0b1dd51c934a78130e581178313 100644
--- a/third_party/WebKit/public/platform/WebViewScheduler.h
+++ b/third_party/WebKit/public/platform/WebViewScheduler.h
@@ -53,7 +53,8 @@ public:
         PAUSE,
 
         // In this policy virtual time is allowed to advance unless there are pending network
-        // fetches associated any child WebFrameScheduler.
+        // fetches associated any child WebFrameScheduler, or a document is being parsed on a
+        // background thread.
         PAUSE_IF_NETWORK_FETCHES_PENDING

[Mike West, 2016/07/29 13:49:08]

Nit: Is there a name for this enum that could represent the state you're now
checking?

[alex clarke (OOO till 29th), 2016/07/29 14:07:27]

Done.

     };