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

content/browser/screen_orientation/screen_orientation_provider.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
 #define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ skipping 18 matching lines @@
  public:
   ScreenOrientationProvider(WebContents* web_contents);
 
   ~ScreenOrientationProvider() override;
 
   // device::mojom::ScreenOrientation:
   void LockOrientation(blink::WebScreenOrientationLockType orientation,
                        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.
   static void SetDelegate(ScreenOrientationDelegate* delegate_);
 
   // WebContentsObserver
   void DidToggleFullscreenModeForTab(bool entered_fullscreen,
                                      bool will_cause_resize) override;
   void DidFinishNavigation(NavigationHandle* navigation_handle) override;
 
@@ skipping 24 matching lines @@
   LockOrientationCallback pending_callback_;
 
   WebContentsFrameBindingSet<device::mojom::ScreenOrientation> bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationProvider);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_