[TabManager] Move TabManager into chrome/browser/resource_coordinator.

chrome/browser/resource_coordinator/tab_manager_observer.h

 // Copyright (c) 2016 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_MEMORY_TAB_MANAGER_OBSERVER_H_
-#define CHROME_BROWSER_MEMORY_TAB_MANAGER_OBSERVER_H_
+#ifndef CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_MANAGER_OBSERVER_H_
+#define CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_MANAGER_OBSERVER_H_
 
 namespace content {
 class WebContents;
 }
 
-namespace memory {
+namespace resource_coordinator {
 
 // Interface for objects that wish to be notified of changes in TabManager.
 class TabManagerObserver {
  public:
   // Invoked when the Discarded state changes.
   // Sends the WebContents of the tab that had the discarded property changed
   // and the current state to let observers know if it is discarderd or not.
   virtual void OnDiscardedStateChange(content::WebContents* contents,
                                       bool is_discarded);
 
   // Invoked when the auto-discardable state changes.
   virtual void OnAutoDiscardableStateChange(content::WebContents* contents,
                                             bool is_auto_discardable);
 
  protected:
   virtual ~TabManagerObserver();
 };
 
-}  // namespace memory
+}  // namespace resource_coordinator
 
-#endif  // CHROME_BROWSER_MEMORY_TAB_MANAGER_OBSERVER_H_
+#endif  // CHROME_BROWSER_RESOURCE_COORDINATOR_TAB_MANAGER_OBSERVER_H_