1 files changed, 91 insertions, 0 deletions
diff --git a/chromium/chrome/renderer/plugins/plugin_uma.h b/chromium/chrome/renderer/plugins/plugin_uma.h
new file mode 100644
index 00000000000..d21498ad194
--- /dev/null
+++ b/chromium/chrome/renderer/plugins/plugin_uma.h
@@ -0,0 +1,91 @@
+// 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 <stddef.h>
+
+#include <memory>
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "url/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,
+  };
+
+  // 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+    OTHER = 5,  // This is obsolete and replaced by UNSUPPORTED_* types.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 = 12,  // Obsolete March 2018
+    // 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;
+  };
+
+  // Returns singleton instance.
+  static PluginUMAReporter* GetInstance();
+
+  void ReportPluginMissing(const std::string& plugin_mime_type,
+                           const GURL& plugin_src);
+
+  void ReportPluginDisabled(const std::string& plugin_mime_type,
+                            const GURL& plugin_src);
+
+ private:
+  friend struct base::DefaultSingletonTraits<PluginUMAReporter>;
+  friend class PluginUMATest;
+
+  PluginUMAReporter();
+  ~PluginUMAReporter();
+
+  static bool CompareCStrings(const char* first, const char* second);
+  bool CStringArrayContainsCString(const char* const* array,
+                                   size_t array_size,
+                                   const char* str);
+  // Extracts file extension from url.
+  void ExtractFileExtension(const GURL& src, std::string* extension);
+
+  PluginType GetPluginType(const std::string& plugin_mime_type,
+                           const GURL& plugin_src);
+
+  // Converts plugin's src to plugin type.
+  PluginType SrcToPluginType(const GURL& src);
+  // Converts plugin's mime type to plugin type.
+  PluginType MimeTypeToPluginType(const std::string& mime_type);
+
+  std::unique_ptr<UMASender> report_sender_;
+
+  DISALLOW_COPY_AND_ASSIGN(PluginUMAReporter);
+};
+
+#endif  // CHROME_RENDERER_PLUGINS_PLUGIN_UMA_H_