Moved c/b/e/*idle* to c/b/e/api/idle/

chrome/browser/extensions/api/idle/idle_api.h

 // Copyright (c) 2012 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_EXTENSIONS_EXTENSION_IDLE_API_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_IDLE_API_H_
+#ifndef CHROME_BROWSER_EXTENSIONS_API_IDLE_IDLE_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_IDLE_IDLE_API_H_
 
+#include "base/gtest_prod_util.h"
 #include "chrome/browser/idle.h"
 #include "chrome/browser/extensions/extension_function.h"
 
 class Profile;
 
+FORWARD_DECLARE_TEST(ExtensionIdleApiTest, CacheTest);
+
+namespace extensions {
+
 // Event router class for events related to the idle API.
 class ExtensionIdleEventRouter {
  public:
   static void OnIdleStateChange(Profile* profile,
                                 IdleState idleState);
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionIdleEventRouter);
 };
 
 // Implementation of the chrome.idle.queryState API.
@@ skipping 11 matching lines @@
   void IdleStateCallback(int threshold, IdleState state);
 };
 
 // Class used for caching answers from CalculateIdleState.
 class ExtensionIdleCache {
  public:
   static IdleState CalculateIdleState(int threshold);
   static void UpdateCache(int threshold, IdleState state);
 
  private:
-  FRIEND_TEST_ALL_PREFIXES(ExtensionIdleApiTest, CacheTest);
+  FRIEND_TEST_ALL_PREFIXES(::ExtensionIdleApiTest, CacheTest);
 
   struct CacheData {
     // Latest moment in history after which we are certain that there was some
     // activity. If we are querying for a  threshold beyond this moment, we know
     // the result will be active.
     double latest_known_active;
     // [idle_interval_start, idle_interval_end] is the latest interval in
     // history for which we are certain there was no activity.
     double idle_interval_start;
     double idle_interval_end;
@@ skipping 18 matching lines @@
   // |state| is result of the query.
   // |moment| is moment in time this method is called.
   static void Update(int threshold, IdleState state, double moment);
 
   static int get_min_threshold();
   static double get_throttle_interval();
 
   static CacheData cached_data;
 };
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_IDLE_API_H_
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_IDLE_IDLE_API_H_