In Dev and Beta, give 10 mins for shutdown and in

beta give 20 mins for shutdown.

BUG=95506
TEST=shutdown
R=jar

Review URL: http://codereview.chromium.org/7839003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99804 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/metrics/thread_watcher.cc

@@ -727,6 +727,14 @@ ShutdownWatcherHelper::~ShutdownWatcherHelper() {
 
 void ShutdownWatcherHelper::Arm(const base::TimeDelta& duration) {
   DCHECK(!shutdown_watchdog_);
-  shutdown_watchdog_ = new ShutdownWatchDogThread(duration);
+  base::TimeDelta actual_duration = duration;
+  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
+  if (channel == chrome::VersionInfo::CHANNEL_STABLE) {
+    actual_duration *= 50;
+  } else if (channel == chrome::VersionInfo::CHANNEL_BETA ||
+             channel == chrome::VersionInfo::CHANNEL_DEV) {
+    actual_duration *= 25;
+  }
+  shutdown_watchdog_ = new ShutdownWatchDogThread(actual_duration);
   shutdown_watchdog_->Arm();
 }