Report UMA for Shockwave Flash and Widevine CDM.

chrome/renderer/plugins/plugin_uma.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_PLUGINS_PLUGIN_UMA_H_
 #define CHROME_RENDERER_PLUGINS_PLUGIN_UMA_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "googleurl/src/gurl.h"
 
 // Used to send UMA data about missing plugins to UMA histogram server. Method
 // ReportPluginMissing should be called whenever plugin that is not available or
 // enabled is called. We try to determine plugin's type by requested mime type,
 // or, if mime type is unknown, by plugin's src url.
 class PluginUMAReporter {
  public:
   enum ReportType {
     MISSING_PLUGIN,
     DISABLED_PLUGIN
   };
 
-  // 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+    OTHER = 5,  // This is obsolete and replaced by UNSUPPORTED_* types.
+    UNSUPPORTED_MIMETYPE,
+    UNSUPPORTED_EXTENSION,
+    // NOTE: Add new unsupported types only immediately above this line.
+    BROWSER_PLUGIN = 10,
+    SHOCKWAVE_FLASH,
+    WIDEVINE_CDM,
+    // NOTE: Add new plugin types only immediately above this line.
+    PLUGIN_TYPE_MAX
   };
 
   // Sends UMA data, i.e. plugin's type.
   class UMASender {
    public:
     virtual ~UMASender() {}
     virtual void SendPluginUMA(ReportType report_type,
                                PluginType plugin_type) = 0;
   };
 
@@ skipping 28 matching lines @@
   // Converts plugin's mime type to plugin type.
   PluginType MimeTypeToPluginType(const std::string& mime_type);
 
   scoped_ptr<UMASender> report_sender_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginUMAReporter);
 };
 
 #endif  // CHROME_RENDERER_PLUGINS_PLUGIN_UMA_H_