Reland of [DevTools] Move screen orientation override to RenderWidgetScreenMetricsEmulator.

components/test_runner/mock_screen_orientation_client.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 COMPONENTS_TEST_RUNNER_MOCK_SCREEN_ORIENTATION_CLIENT_H_
 #define COMPONENTS_TEST_RUNNER_MOCK_SCREEN_ORIENTATION_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "components/test_runner/test_runner_export.h"
@@ skipping 13 matching lines @@
  public:
   explicit MockScreenOrientationClient();
   ~MockScreenOrientationClient() override;
 
   void ResetData();
   void UpdateDeviceOrientation(blink::WebLocalFrame* main_frame,
                                blink::WebScreenOrientationType orientation);
 
   blink::WebScreenOrientationType CurrentOrientationType() const;
   unsigned CurrentOrientationAngle() const;
+  bool is_active() const { return is_active_; }
 
  private:
   // From blink::WebScreenOrientationClient.
   void lockOrientation(blink::WebScreenOrientationLockType orientation,
                        blink::WebLockOrientationCallback* callback) override;
   void unlockOrientation() override;
 
   void UpdateLockSync(blink::WebScreenOrientationLockType,
                       blink::WebLockOrientationCallback*);
   void ResetLockSync();
 
   void UpdateScreenOrientation(blink::WebScreenOrientationType);
   bool IsOrientationAllowedByCurrentLock(blink::WebScreenOrientationType);
   blink::WebScreenOrientationType SuitableOrientationForCurrentLock();
   static unsigned OrientationTypeToAngle(blink::WebScreenOrientationType);
 
   blink::WebLocalFrame* main_frame_;
   blink::WebScreenOrientationLockType current_lock_;
   blink::WebScreenOrientationType device_orientation_;
   blink::WebScreenOrientationType current_orientation_;
+  bool is_active_;
 
   DISALLOW_COPY_AND_ASSIGN(MockScreenOrientationClient);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_MOCK_SCREEN_ORIENTATION_CLIENT_H_