Report UMA for Shockwave Flash and Widevine CDM.

chrome/renderer/plugins/plugin_uma.h

Index: chrome/renderer/plugins/plugin_uma.h
diff --git a/chrome/renderer/plugins/plugin_uma.h b/chrome/renderer/plugins/plugin_uma.h
index f1eb4cf2d701a2a35cc7f89c81291d43224bd2b5..4dc788ea41ab094252e4b591ed8e8f927d8381d6 100644
--- a/chrome/renderer/plugins/plugin_uma.h
+++ b/chrome/renderer/plugins/plugin_uma.h
@@ -17,14 +17,23 @@
 // or, if mime type is unknown, by plugin's src url.
 class MissingPluginReporter {
  public:
-  // This must be sync'd with histogram values.
+  // Make sure the enum list in tools/histogram/histograms.xml is updated with
+  // any change in this list.
   enum PluginType {
     WINDOWS_MEDIA_PLAYER = 0,
     SILVERLIGHT = 1,
     REALPLAYER = 2,
     JAVA = 3,
     QUICKTIME = 4,
-    OTHER = 5
+    OTHER = 5,  // This is obsolete and replaced by UNSUPPORTED_* types.
+    BROWSER_PLUGIN = 6,
+    SHOCKWAVE_FLASH = 7,
+    WIDEVINE_CDM = 8,
+    // NOTE: Add new plugin types only immediately above this line.
+    UNSUPPORTED_MIMETYPE = 240,
+    UNSUPPORTED_EXTENSION = 241,
+    // NOTE: Add new unsupported types only immediately above this line.
+    PLUGIN_TYPE_MAX

[ddorwin, 2013/04/05 05:32:17]

On second thought, any idea if each slot consumes some type of resource or if we
will end up with 231 empty values in the histogram? Otherwise, what's the point
of the max value?

[xhwang, 2013/04/05 19:00:09]

Moved UNSUPPORTED_* after OTHER to avoid the gap.

   };
 
   // Sends UMA data, i.e. plugin's type.