cros: Change out-of-memory logging to a warning

We were printing the data as an INFO before, which wasn't being written to the system log.

BUG=126254
TEST=trigger a tab discard via chrome://discards, verify memory data appears in chrome://system chrome_logs

Review URL: https://chromiumcodereview.appspot.com/10310020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@135368 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/oom_priority_manager.cc

@@ -118,7 +118,7 @@ void OomMemoryDetails::OnDetailsAvailable() {
   TimeDelta delta = TimeTicks::Now() - start_time_;
   // These logs are collected by user feedback reports.  We want them to help
   // diagnose user-reported problems with frequently discarded tabs.
-  LOG(INFO) << "OOM details (" << delta.InMilliseconds() << " ms):\n"
+  LOG(WARNING) << "OOM details (" << delta.InMilliseconds() << " ms):\n"
       << ToLogString();
   if (g_browser_process && g_browser_process->oom_priority_manager())
     g_browser_process->oom_priority_manager()->DiscardTab();