Add unittest for ArcNotificationContentView

components/exo/surface.h

 // Copyright 2015 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_EXO_SURFACE_H_
 #define COMPONENTS_EXO_SURFACE_H_
 
 #include <list>
 #include <set>
 #include <utility>
@@ skipping 42 matching lines @@
 // This class represents a rectangular area that is displayed on the screen.
 // It has a location, size and pixel contents.
 class Surface : public ui::ContextFactoryObserver,
                 public aura::WindowObserver,
                 public ui::PropertyHandler,
                 public ui::CompositorVSyncManager::Observer,
                 public cc::BeginFrameObserverBase {
  public:
   using PropertyDeallocator = void (*)(int64_t value);
 
+  static const char kSurfaceWindowName[];
+
   Surface();
   ~Surface() override;
 
   // Type-checking downcast routine.
   static Surface* AsSurface(const aura::Window* window);
 
   aura::Window* window() { return window_.get(); }
 
   cc::SurfaceId GetSurfaceId() const;
 
@@ skipping 319 matching lines @@
   cc::BeginFrameSource* begin_frame_source_ = nullptr;
   bool needs_begin_frame_ = false;
   cc::BeginFrameAck current_begin_frame_ack_;
 
   DISALLOW_COPY_AND_ASSIGN(Surface);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_SURFACE_H_