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

chrome/browser/resource_coordinator/tab_manager_web_contents_data.cc

 // 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.
 
-#include "chrome/browser/memory/tab_manager_web_contents_data.h"
+#include "chrome/browser/resource_coordinator/tab_manager_web_contents_data.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/time/tick_clock.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/engagement/site_engagement_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
 
 using base::TimeTicks;
 using content::WebContents;
 
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(memory::TabManager::WebContentsData);
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(
+    resource_coordinator::TabManager::WebContentsData);
 
-namespace memory {
+namespace resource_coordinator {
 
 TabManager::WebContentsData::WebContentsData(content::WebContents* web_contents)
     : WebContentsObserver(web_contents),
       test_tick_clock_(nullptr),
       time_to_purge_(base::TimeDelta::FromMinutes(30)),
       is_purged_(false) {}
 
 TabManager::WebContentsData::~WebContentsData() {}
 
 void TabManager::WebContentsData::DidStartLoading() {
@@ skipping 163 matching lines @@
 
   tab_data_.is_auto_discardable = state;
   g_browser_process->GetTabManager()->OnAutoDiscardableStateChange(
       web_contents(), state);
 }
 
 bool TabManager::WebContentsData::IsAutoDiscardable() {
   return tab_data_.is_auto_discardable;
 }
 
-}  // namespace memory
+}  // namespace resource_coordinator