Metrics should log size in pixel

BUG=125465, 115554
TEST=none

Review URL: http://codereview.chromium.org/10262018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@135048 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/metrics/metrics_log.cc b/chrome/browser/metrics/metrics_log.cc
index 43a8d55..b2c2079 100644
--- a/chrome/browser/metrics/metrics_log.cc
+++ b/chrome/browser/metrics/metrics_log.cc
@@ -343,14 +343,13 @@
 }
 
 gfx::Size MetricsLog::GetScreenSize() const {
-  return gfx::Screen::GetPrimaryMonitor().size();
+  return gfx::Screen::GetPrimaryMonitor().GetSizeInPixel();
 }
 
 int MetricsLog::GetScreenCount() const {
   return gfx::Screen::GetNumMonitors();
 }
 
-
 void MetricsLog::GetFieldTrialIds(
     std::vector<SelectedGroupId>* field_trial_ids) const {
   experiments_helper::GetFieldTrialSelectedGroupIds(field_trial_ids);