scheduler: Throttle timers in out-of-view frames

third_party/WebKit/public/platform/WebFrameScheduler.h

Index: third_party/WebKit/public/platform/WebFrameScheduler.h
diff --git a/third_party/WebKit/public/platform/WebFrameScheduler.h b/third_party/WebKit/public/platform/WebFrameScheduler.h
index e1454b3b71cc5dac8317340bdff3aa996d4bfeb6..c63b84b5050c068e23fc11bae4ae668bc370b0b5 100644
--- a/third_party/WebKit/public/platform/WebFrameScheduler.h
+++ b/third_party/WebKit/public/platform/WebFrameScheduler.h
@@ -25,6 +25,11 @@ public:
     // The scheduler may throttle tasks associated with pages that are not visible.
     virtual void setPageVisible(bool) { }
 
+    // Set whether this frame is cross origin w.r.t. the top level frame. Cross
+    // origin frames may use a different scheduling policy from same origin
+    // frames.
+    virtual void setCrossOrigin(bool) {}
+
     // Returns the WebTaskRunner for loading tasks.
     // WebFrameScheduler owns the returned WebTaskRunner.
     virtual WebTaskRunner* loadingTaskRunner() { return nullptr; }