[win] Differentiate between fast and non-fast startup path UMAs.

On windows we can complete the ProcessSingleton rendesvouz before we
load chrome.dll and proceed with the rest of chrome startup. If we do it
is known as a fast start. This change adds fast versions of the UMAs
Startup.ShowAppListWarmStart and
Startup.WarmStartTimeFromRemoteProcessStart so we can compare the
timings of the fast and non-fast cases.

Review URL: https://chromiumcodereview.appspot.com/18150005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@209914 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 2 deletions

diff --git a/chrome/browser/chrome_process_finder_win.cc b/chrome/browser/chrome_process_finder_win.cc
index c7a4985..34f6761 100644
--- a/chrome/browser/chrome_process_finder_win.cc
+++ b/chrome/browser/chrome_process_finder_win.cc
@@ -93,7 +93,7 @@ std::string EscapeQueryParamValue(const std::string& text, bool use_plus) {
 
 // END COPY from net/base/escape.cc
 
-}
+}  // namespace
 
 namespace chrome {
 
@@ -102,7 +102,8 @@ HWND FindRunningChromeWindow(const base::FilePath& user_data_dir) {
                       user_data_dir.value().c_str());
 }
 
-NotifyChromeResult AttemptToNotifyRunningChrome(HWND remote_window) {
+NotifyChromeResult AttemptToNotifyRunningChrome(HWND remote_window,
+                                                bool fast_start) {
   DCHECK(remote_window);
   static const char kSearchUrl[] =
       "http://www.google.com/search?q=%s&sourceid=chrome&ie=UTF-8";
@@ -150,6 +151,9 @@ NotifyChromeResult AttemptToNotifyRunningChrome(HWND remote_window) {
       base::Int64ToString(
           base::CurrentProcessInfo::CreationTime()->ToInternalValue()));
 
+  if (fast_start)
+    command_line.AppendSwitch(switches::kFastStart);
+
   // Send the command line to the remote chrome window.
   // Format is "START\0<<<current directory>>>\0<<<commandline>>>".
   std::wstring to_send(L"START\0", 6);  // want the NULL in the string.