Log mixed script shield events.

chrome/browser/content_settings/tab_specific_content_settings.cc

Index: chrome/browser/content_settings/tab_specific_content_settings.cc
diff --git a/chrome/browser/content_settings/tab_specific_content_settings.cc b/chrome/browser/content_settings/tab_specific_content_settings.cc
index d52e41d19b0c58e9e29c09dab70820ce11dffb55..c25e6b6ba8cba8494329d574f7c0af16b6ee7dc7 100644
--- a/chrome/browser/content_settings/tab_specific_content_settings.cc
+++ b/chrome/browser/content_settings/tab_specific_content_settings.cc
@@ -8,6 +8,7 @@
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
+#include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browsing_data/browsing_data_appcache_helper.h"
@@ -63,6 +64,13 @@ STATIC_CONST_MEMBER_DEFINITION const
     TabSpecificContentSettings::MicrophoneCameraState
     TabSpecificContentSettings::CAMERA_BLOCKED;
 
+
+void TabSpecificContentSettings::RecordMixedScriptAction(int action) {
+  UMA_HISTOGRAM_ENUMERATION("ContentSettings.MixedScript",
+                            action,
+                            MIXEDSCRIPT_NUM_ACTIONS);
+}
+
 TabSpecificContentSettings::SiteDataObserver::SiteDataObserver(
     TabSpecificContentSettings* tab_specific_content_settings)
     : tab_specific_content_settings_(tab_specific_content_settings) {
@@ -324,6 +332,10 @@ void TabSpecificContentSettings::OnContentBlocked(ContentSettingsType type) {
         chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED,
         content::Source<WebContents>(web_contents()),
         content::NotificationService::NoDetails());
+
+    if (type == CONTENT_SETTINGS_TYPE_MIXEDSCRIPT) {
+      RecordMixedScriptAction(MIXEDSCRIPT_DISPLAYED_SHIELD);
+    }
   }
 }