Whitelist Widevine CDM for plugin UMA on all platforms.

chrome/renderer/pepper/pepper_uma_host.h

 // Copyright 2014 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_PEPPER_PEPPER_UMA_HOST_H_
 #define CHROME_RENDERER_PEPPER_PEPPER_UMA_HOST_H_
 
 #include <set>
 #include <string>
 
@@ skipping 52 matching lines @@
   int32_t OnIsCrashReportingEnabled(ppapi::host::HostMessageContext* context);
 
   const GURL document_url_;
   bool is_plugin_in_process_;
   base::FilePath plugin_base_name_;
 
   // Set of origins that can use UMA private APIs from NaCl.
   std::set<std::string> allowed_origins_;
   // Set of hashed histogram prefixes that can be used from this interface.
   std::set<std::string> allowed_histogram_prefixes_;
-  // Set of plugin files names that are allowed to use this interface.
-  std::set<std::string> allowed_plugin_base_names_;
+  // Set of plugin file name patterns that are allowed to use this interface.
+  std::set<std::string> allowed_plugin_name_patterns_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperUMAHost);
 };
 
 #endif  // CHROME_RENDERER_PEPPER_PEPPER_UMA_HOST_H_