Add a mechanism to pause and resume geolocation requests.

content/browser/geolocation/location_arbitrator.h

Index: content/browser/geolocation/location_arbitrator.h
diff --git a/content/browser/geolocation/location_arbitrator.h b/content/browser/geolocation/location_arbitrator.h
index d2cd191c7981db567665744e0c2e8c4e2391714a..7446da1daaa6250ea6020d5c8e056ea6e94e7d61 100644
--- a/content/browser/geolocation/location_arbitrator.h
+++ b/content/browser/geolocation/location_arbitrator.h
@@ -19,6 +19,8 @@ public:
   // See more details in geolocation_provider.
   virtual void StartProviders(bool use_high_accuracy) = 0;
   virtual void StopProviders() = 0;
+  virtual void PauseProviders() = 0;
+  virtual void ResumeProviders() = 0;
 
   // Called everytime permission is granted to a page for using geolocation.
   // This may either be through explicit user action (e.g. responding to the