Move PepperOutputProtectionMessageFilter::Delegate to OutputProtectionDelegate.

chrome/browser/chromeos/display/output_protection_delegate.h

+// Copyright 2013 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 CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_
+#define CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_
+
+#include "base/memory/weak_ptr.h"
+#include "ui/aura/window.h"
+#include "ui/aura/window_observer.h"
+#include "ui/display/chromeos/display_configurator.h"
+
+namespace chromeos {
+
+// Output protection delegate. All methods except constructor should be

[Jun Mukai, 2015/05/19 04:10:31]

"Output protection delegate" is simply repeating the class name. Could you
explain more verbosely what this class should do?

[xhwang, 2015/05/19 05:29:44]

Done.

+// invoked in UI thread.
+class OutputProtectionDelegate : public aura::WindowObserver {
+ public:
+  typedef base::Callback<void(bool /* success */,
+                              uint32_t /* link_mask */,
+                              uint32_t /* protection_mask*/)>
+      QueryStatusCallback;
+  typedef base::Callback<void(bool /* success */)> EnableProtectionCallback;
+
+  OutputProtectionDelegate(int render_process_id, int render_frame_id);
+  ~OutputProtectionDelegate() override;
+
+  // aura::WindowObserver overrides.
+  void OnWindowHierarchyChanged(
+      const aura::WindowObserver::HierarchyChangeParams& params) override;
+  void OnWindowDestroying(aura::Window* window) override;
+
+  void QueryStatus(const QueryStatusCallback& callback);
+  void EnableProtection(uint32_t desired_method_mask,
+                        const EnableProtectionCallback& callback);
+
+ private:
+  ui::DisplayConfigurator::ContentProtectionClientId GetClientId();
+
+  void QueryStatusComplete(
+      const QueryStatusCallback& callback,
+      const ui::DisplayConfigurator::QueryProtectionResponse& response);
+  void EnableProtectionComplete(const EnableProtectionCallback& callback,
+                                bool success);
+
+  // Used to lookup the WebContents associated with the render frame.
+  int render_process_id_;
+  int render_frame_id_;
+
+  // Native window being observed.
+  aura::Window* window_;
+
+  ui::DisplayConfigurator::ContentProtectionClientId client_id_;
+
+  // The display id which the renderer currently uses.
+  int64 display_id_;
+
+  // The last desired method mask. Will enable this mask on new display if
+  // renderer changes display.
+  uint32_t desired_method_mask_;
+
+  base::WeakPtrFactory<OutputProtectionDelegate> weak_ptr_factory_;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_