Export Content Mus for Unit Testing

content/renderer/mus/compositor_mus_connection.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 CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_
 #define CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_
 
 #include "base/bind.h"
+#include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "components/mus/public/cpp/input_event_handler.h"
 #include "components/mus/public/cpp/window.h"
 #include "components/mus/public/cpp/window_tree_connection.h"
 #include "components/mus/public/cpp/window_tree_delegate.h"
+#include "content/common/content_export.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 namespace content {
 
 class InputHandlerManager;
 
 // CompositorMusConnection manages the connection to the Mandoline UI Service
 // (Mus) on the compositor thread. For operations that need to happen on the
 // main thread, CompositorMusConnection deals with passing information across
 // threads. CompositorMusConnection is constructed on the main thread. By
 // default all other methods are assumed to run on the compositor thread unless
 // explicited suffixed with OnMainThread.
-class CompositorMusConnection
-    : public mus::WindowTreeDelegate,
-      public mus::InputEventHandler,
+class CONTENT_EXPORT CompositorMusConnection
+    : NON_EXPORTED_BASE(public mus::WindowTreeDelegate),
+      NON_EXPORTED_BASE(public mus::InputEventHandler),
       public base::RefCountedThreadSafe<CompositorMusConnection> {
  public:
   // Created on main thread.
   CompositorMusConnection(
       int routing_id,
       const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
       mojo::InterfaceRequest<mus::mojom::WindowTreeClient> request,
       InputHandlerManager* input_handler_manager);
 
@@ skipping 36 matching lines @@
   scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
   InputHandlerManager* const input_handler_manager_;
   scoped_ptr<mus::WindowSurfaceBinding> window_surface_binding_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorMusConnection);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_