Add support for cellular geolocation

chromeos/timezone/timezone_resolver.h

Index: chromeos/timezone/timezone_resolver.h
diff --git a/chromeos/timezone/timezone_resolver.h b/chromeos/timezone/timezone_resolver.h
index 926179d7432645e3dbb4e9e51100fcb5f529b0da..c455f82891b2923c6d4043b775d7748d1182c4bc 100644
--- a/chromeos/timezone/timezone_resolver.h
+++ b/chromeos/timezone/timezone_resolver.h
@@ -42,6 +42,9 @@ class CHROMEOS_EXPORT TimeZoneResolver {
     // Returns true if TimeZoneResolver should include WiFi data in request.
     virtual bool ShouldSendWiFiGeolocationData() = 0;
 
+    // Returns true if TimeZoneResolver should include Cellular data in request.
+    virtual bool ShouldSendCellularGeolocationData() = 0;
+
    private:
     DISALLOW_COPY_AND_ASSIGN(Delegate);
   };
@@ -82,6 +85,9 @@ class CHROMEOS_EXPORT TimeZoneResolver {
   // Proxy call to Delegate::ShouldSendWiFiGeolocationData().
   bool ShouldSendWiFiGeolocationData() const;
 
+  // Proxy call to Delegate::ShouldSendCellularGeolocationData().
+  bool ShouldSendCellularGeolocationData() const;
+
   // Expose internal fuctions for testing.
   static int MaxRequestsCountForIntervalForTesting(
       const double interval_seconds);