Add a commandline switch to run PerformanceMonitor

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 1139 matching lines @@
 // Forces a reset of the one-time-randomized FieldTrials on this client, also
 // known as the Chrome Variations state.
 const char kResetVariationState[]           = "reset-variation-state";
 
 // Indicates the last session should be restored on startup. This overrides the
 // preferences value and is primarily intended for testing. The value of this
 // switch is the number of tabs to wait until loaded before 'load completed' is
 // sent to the ui_test.
 const char kRestoreLastSession[]            = "restore-last-session";
 
+// Launches PerformanceMonitor at startup, which will gather statistics about
+// Chrome's CPU and memory usage, page load times, startup times, and network
+// usage; and will also store information about events which may be of interest,

[Yoyo Zhou, 2012/08/13 19:37:20]

nit: either change the ; to a , or change "and" to "it"

[Devlin, 2012/08/14 16:13:54]

Done.

+// such as extension-related occurences and crashes.

[Yoyo Zhou, 2012/08/13 19:37:20]

nit: occurrences

[Devlin, 2012/08/14 16:13:54]

Wow, I can't spell this word for the life of me...
(*gets curious*)
$ git grep --ignore-case -e "occurance"  --or -e "occurrance" --or -e
"occurence" | wc
$ 81     827    8327
$ git grep --ignore-case "occurrence" | wc
$ 321    3025   33445
At least I'm not alone :) Thanks for catching this (again)!

+const char kRunPerformanceMonitor[]         = "run-performance-monitor";
+
 // Disable saving pages as HTML-only, disable saving pages as HTML Complete
 // (with a directory of sub-resources). Enable only saving pages as MHTML.
 // See http://crbug.com/120416 for how to remove this switch.
 const char kSavePageAsMHTML[] = "save-page-as-mhtml";
 
 // URL prefix used by safebrowsing to fetch hash, download data and report
 // malware.
 const char kSbURLPrefix[] = "safebrowsing-url-prefix";
 
 // If present, safebrowsing only performs update when
@@ skipping 397 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches