Move components/startup_metric_utils/* to components/startup_metric_utils/browser/*.

components/startup_metric_utils/startup_metric_utils.h

-// Copyright 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 COMPONENTS_STARTUP_METRIC_UTILS_STARTUP_METRIC_UTILS_H_
-#define COMPONENTS_STARTUP_METRIC_UTILS_STARTUP_METRIC_UTILS_H_
-
-#include <string>
-
-#include "base/time/time.h"
-
-// Utility functions to support metric collection for browser startup.
-
-namespace startup_metric_utils {
-
-// An enumeration of startup temperatures. This must be kept in sync with the
-// UMA StartupType enumeration defined in histograms.xml.
-enum StartupTemperature {
-  // The startup was a cold start: nearly all of the Chrome binaries and
-  // resources were brought into memory using hard faults.
-  COLD_STARTUP_TEMPERATURE = 0,
-  // The startup was a warm start: the Chrome binaries and resources were
-  // mostly already resident in memory and effectively no hard faults were
-  // observed.
-  WARM_STARTUP_TEMPERATURE = 1,
-  // The startup type couldn't quite be classified as warm of cold, but rather
-  // was somewhere in between.
-  UNCERTAIN_STARTUP_TEMPERATURE = 2,
-  // This must be last.
-  STARTUP_TEMPERATURE_MAX
-};
-
-// Returns true if any UI other than the browser window has been displayed
-// so far.  Useful to test if UI has been displayed before the first browser
-// window was shown, which would invalidate any surrounding timing metrics.
-bool WasNonBrowserUIDisplayed();
-
-// Call this when displaying UI that might potentially delay the appearance
-// of the initial browser window on Chrome startup.
-//
-// Note on usage: This function is idempotent and its overhead is low enough
-// in comparison with UI display that it's OK to call it on every
-// UI invocation regardless of whether the browser window has already
-// been displayed or not.
-void SetNonBrowserUIDisplayed();
-
-// Call this with the creation time of the startup (initial/main) process.
-void RecordStartupProcessCreationTime(const base::Time& time);
-
-// Call this with a time recorded as early as possible in the startup process.
-// On Android, the entry point time is the time at which the Java code starts.
-// In Mojo, the entry point time is the time at which the shell starts.
-void RecordMainEntryPointTime(const base::Time& time);
-
-// Call this with the time when the executable is loaded and main() is entered.
-// Can be different from |RecordMainEntryPointTime| when the startup process is
-// contained in a separate dll, such as with chrome.exe / chrome.dll on Windows.
-void RecordExeMainEntryPointTime(const base::Time& time);
-
-// Call this with the time recorded just before the message loop is started.
-// |is_first_run| - is the current launch part of a first run.
-void RecordBrowserMainMessageLoopStart(const base::Time& time,
-                                       bool is_first_run);
-
-// Call this with the time when the first browser window became visible.
-void RecordBrowserWindowDisplay(const base::Time& time);
-
-// Call this with the time delta that the browser spent opening its tabs.
-void RecordBrowserOpenTabsDelta(const base::TimeDelta& delta);
-
-// Call this with the time when the first web contents loaded its main frame,
-// only if the first web contents was unimpended in its attempt to do so.
-void RecordFirstWebContentsMainFrameLoad(const base::Time& time);
-
-// Call this with the time when the first web contents loaded its main frame.
-// This records an old stat kept for comparison purposes until M49.
-void RecordDeprecatedFirstWebContentsMainFrameLoad(const base::Time& time);
-
-// Call this with the time when the first web contents had a non-empty paint,
-// only if the first web contents was unimpended in its attempt to do so.
-void RecordFirstWebContentsNonEmptyPaint(const base::Time& time);
-
-// Call this with the time when the first web contents had a non-empty paint.
-// This records an old stat kept for comparison purposes until M49.
-void RecordDeprecatedFirstWebContentsNonEmptyPaint(const base::Time& time);
-
-// Call this with the time when the first web contents began navigating its main
-// frame.
-void RecordFirstWebContentsMainNavigationStart(const base::Time& time);
-
-// Call this with the time when the first web contents successfully committed
-// its navigation for the main frame.
-void RecordFirstWebContentsMainNavigationFinished(const base::Time& time);
-
-// Returns the time of main entry recorded from RecordMainEntryPointTime.
-// Returns a null Time if a value has not been recorded yet.
-// This method is expected to be called from the UI thread.
-base::Time MainEntryPointTime();
-
-// Returns the startup type. This is only currently supported on the Windows
-// platform and will simply return UNCERTAIN_STARTUP_TYPE on other platforms.
-// This is only valid after a call to RecordBrowserMainMessageLoopStart().
-StartupTemperature GetStartupTemperature();
-
-}  // namespace startup_metric_utils
-
-#endif  // COMPONENTS_STARTUP_METRIC_UTILS_STARTUP_METRIC_UTILS_H_