[cros login] Split login related classes into subfolders.

chrome/browser/chromeos/login/merge_session_throttle.h

-// Copyright (c) 2013 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_CHROMEOS_LOGIN_MERGE_SESSION_THROTTLE_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_MERGE_SESSION_THROTTLE_H_
-
-#include <set>
-
-#include "base/atomic_ref_count.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "content/public/browser/resource_throttle.h"
-#include "net/base/completion_callback.h"
-#include "webkit/common/resource_type.h"
-
-class Profile;
-
-namespace net {
-class URLRequest;
-}
-
-namespace chromeos {
-class OAuth2LoginManager;
-}
-
-// Used to show an interstitial page while merge session process (cookie
-// reconstruction from OAuth2 refresh token in ChromeOS login) is still in
-// progress while we are attempting to load a google property.
-class MergeSessionThrottle
-    : public content::ResourceThrottle,
-      public base::SupportsWeakPtr<MergeSessionThrottle> {
- public:
-  // Passed a boolean indicating whether or not it is OK to proceed with the
-  // page load.
-  typedef base::Closure CompletionCallback;
-
-  explicit MergeSessionThrottle(net::URLRequest* request,
-                                ResourceType::Type resource_type);
-  virtual ~MergeSessionThrottle();
-
-  // content::ResourceThrottle implementation:
-  virtual void WillStartRequest(bool* defer) OVERRIDE;
-  virtual const char* GetNameForLogging() const OVERRIDE;
-
-  // Checks if session is already merged.
-  static bool AreAllSessionMergedAlready();
-
- private:
-
-  // MergeSessionLoadPage callback.
-  void OnBlockingPageComplete();
-
-  // Erase the state associated with a deferred load request.
-  void ClearRequestInfo();
-  bool IsRemote(const GURL& url) const;
-
-  // True if we |url| loading should be delayed. The function
-  // is safe to be called on any thread.
-  bool ShouldDelayUrl(const GURL& url) const;
-
-  // Adds/removes |profile| to/from the blocking profiles set.
-  static void BlockProfile(Profile* profile);
-  static void UnblockProfile(Profile* profile);
-
-  // Helper method that checks if we should delay reasource loading based on
-  // the state of the Profile that's derived from |render_process_id| and
-  // |render_view_id|.
-  static bool ShouldDelayRequest(int render_process_id,
-                                 int render_view_id);
-
-  // Tests merge session status and if needed generates request
-  // waiter (for ResourceType::XHR content) or shows interstitial page
-  // (for ResourceType::MAIN_FRAME).
-  // The function must be called from UI thread.
-  static void DeleayResourceLoadingOnUIThread(
-      ResourceType::Type resource_type,
-      int render_process_id,
-      int render_view_id,
-      const GURL& url,
-      const MergeSessionThrottle::CompletionCallback& callback);
-
-  net::URLRequest* request_;
-  ResourceType::Type resource_type_;
-
-  // Global counter that keeps the track of session merge status for all
-  // encountered profiles. This is used to determine if a throttle should
-  // even be even added to new requests. Value of 0 (initial) means that we
-  // probably have some profiles to restore, while 1 means that all known
-  // profiles are restored.
-  static base::AtomicRefCount all_profiles_restored_;
-
-  DISALLOW_COPY_AND_ASSIGN(MergeSessionThrottle);
-};
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_MERGE_SESSION_THROTTLE_H_