[ScreenOrientation] Fire pending lock request when we found it has failed.

content/browser/screen_orientation/screen_orientation_provider.h

Index: content/browser/screen_orientation/screen_orientation_provider.h
diff --git a/content/browser/screen_orientation/screen_orientation_provider.h b/content/browser/screen_orientation/screen_orientation_provider.h
index 0898070e3bb9471d3fee37c606deb4faf5e85720..fb50889cf4c8370bcf623c8c8196c7b6238ed8d9 100644
--- a/content/browser/screen_orientation/screen_orientation_provider.h
+++ b/content/browser/screen_orientation/screen_orientation_provider.h
@@ -36,9 +36,11 @@ class CONTENT_EXPORT ScreenOrientationProvider
                        const LockOrientationCallback& callback) override;
   void UnlockOrientation() override;
 
+#if defined(OS_ANDROID)
   // Inform about a screen orientation update. It is called to let the provider
   // know if a lock has been resolved.
   void OnOrientationChange();
+#endif
 
   // Provide a delegate which creates delegates for platform implementations.
   // The delegate is not owned by ScreenOrientationProvider.