Drop struct BootStat and all usage (boot stats are now sent from chromeos code).

chrome/browser/chromeos/boot_times_loader.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_CHROMEOS_BOOT_TIMES_LOADER_H_
 #define CHROME_BROWSER_CHROMEOS_BOOT_TIMES_LOADER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 16 matching lines @@
 // . In your class define a member field of type chromeos::BootTimesLoader and
 //   CancelableTaskTracker.
 // . Define the callback method, something like:
 //   void OnBootTimesLoaded(const BootTimesLoader::BootTimes& boot_times);
 // . When you want the version invoke: loader.GetBootTimes(callback, &tracker_);
 class BootTimesLoader : public content::NotificationObserver {
  public:
   BootTimesLoader();
   virtual ~BootTimesLoader();
 
-  // All fields are 0.0 if they couldn't be found.
-  typedef struct BootTimes {
-    double firmware;           // Time from power button to kernel being loaded.
-    double pre_startup;        // Time from kernel to system code being called.
-    double x_started;          // Time X server is ready to be connected to.
-    double chrome_exec;        // Time session manager executed Chrome.
-    double chrome_main;        // Time chrome's main() was called.
-    double login_prompt_ready; // Time login (or OOB) panel is displayed.
-    double system;             // Time system took to start chrome.
-    double chrome;             // Time chrome took to display login panel.
-    double total;              // Time from power button to login panel.
-
-    BootTimes() : firmware(0),
-                  pre_startup(0),
-                  x_started(0),
-                  chrome_exec(0),
-                  chrome_main(0),
-                  login_prompt_ready(0),
-                  system(0),
-                  chrome(0),
-                  total(0) {}
-  } BootTimes;
-
   static BootTimesLoader* Get();
 
-  typedef base::Callback<void(const BootTimes&)> GetBootTimesCallback;
-
-  // Asynchronously requests the info.
-  CancelableTaskTracker::TaskId GetBootTimes(
-      const GetBootTimesCallback& callback,
-      CancelableTaskTracker* tracker);
-
   // Add a time marker for login. A timeline will be dumped to
   // /tmp/login-times-sent after login is done. If |send_to_uma| is true
   // the time between this marker and the last will be sent to UMA with
   // the identifier BootTime.|marker_name|.
   void AddLoginTimeMarker(const std::string& marker_name, bool send_to_uma);
 
   // Add a time marker for logout. A timeline will be dumped to
   // /tmp/logout-times-sent after logout is done. If |send_to_uma| is true
   // the time between this marker and the last will be sent to UMA with
   // the identifier ShutdownTime.|marker_name|.
@@ skipping 27 matching lines @@
   // rely on notification service to tell when the logout is done.
   void WriteLogoutTimes();
 
  private:
   // BootTimesLoader calls into the Backend on the file thread to load
   // the boot times.
   class Backend : public base::RefCountedThreadSafe<Backend> {
    public:
     Backend() {}
 
-    void GetBootTimesAndRunCallback(
-        const CancelableTaskTracker::IsCanceledCallback& is_canceled_cb,
-        const GetBootTimesCallback& callback);
-
    private:
     friend class base::RefCountedThreadSafe<Backend>;
 
     ~Backend() {}
 
     DISALLOW_COPY_AND_ASSIGN(Backend);
   };
 
   class TimeMarker {
    public:
@@ skipping 46 matching lines @@
   std::vector<TimeMarker> login_time_markers_;
   std::vector<TimeMarker> logout_time_markers_;
   std::set<content::RenderWidgetHost*> render_widget_hosts_loading_;
 
   DISALLOW_COPY_AND_ASSIGN(BootTimesLoader);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_BOOT_TIMES_LOADER_H_