Proxy private UMA pepper interface for out-of-process and NaCl plugins.

chrome/browser/renderer_host/pepper/pepper_uma_message_filter.h

Index: chrome/browser/renderer_host/pepper/pepper_uma_message_filter.h
diff --git a/chrome/browser/renderer_host/pepper/pepper_uma_message_filter.h b/chrome/browser/renderer_host/pepper/pepper_uma_message_filter.h
new file mode 100644
index 0000000000000000000000000000000000000000..c25245db72d4e559020c409aff96fdbf42a8e0d6
--- /dev/null
+++ b/chrome/browser/renderer_host/pepper/pepper_uma_message_filter.h
@@ -0,0 +1,94 @@
+// Copyright (c) 2013 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_BROWSER_RENDERER_HOST_PEPPER_PEPPER_UMA_MESSAGE_FILTER_H_
+#define CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_UMA_MESSAGE_FILTER_H_
+
+#include <set>
+#include <string>
+
+#include "base/files/file_path.h"
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_resource.h"
+#include "ppapi/host/resource_host.h"
+#include "ppapi/host/resource_message_filter.h"
+#include "url/gurl.h"
+
+class Profile;
+
+namespace content {
+class BrowserPpapiHost;
+}
+
+namespace ppapi {
+namespace host {
+struct HostMessageContext;
+}  // namespace host
+}  // namespace ppapi
+
+namespace chrome {
+
+class PepperUMAMessageFilter
+    : public ppapi::host::ResourceMessageFilter {
+ public:
+  static PepperUMAMessageFilter* Create(
+      PP_Instance instance,
+      content::BrowserPpapiHost* host);
+
+  // ppapi::host::ResourceMessageFilter implementation.
+  virtual scoped_refptr<base::TaskRunner> OverrideTaskRunnerForMessage(
+      const IPC::Message& msg) OVERRIDE;
+  virtual int32_t OnResourceMessageReceived(
+      const IPC::Message& msg,
+      ppapi::host::HostMessageContext* context) OVERRIDE;
+
+ private:
+  PepperUMAMessageFilter(
+      const base::FilePath& profile_directory,
+      const GURL& document_url,
+      bool is_plugin_in_process);
+
+  virtual ~PepperUMAMessageFilter();
+
+  Profile* GetProfile();
+
+  bool IsHistogramAllowed(const std::string& histogram);
+
+  int32_t OnHistogramCustomTimes(
+      ppapi::host::HostMessageContext* context,
+      const std::string& name,
+      int64_t sample,
+      int64_t min,
+      int64_t max,
+      uint32_t bucket_count);
+
+  int32_t OnHistogramCustomCounts(
+      ppapi::host::HostMessageContext* context,
+      const std::string& name,
+      int32_t sample,
+      int32_t min,
+      int32_t max,
+      uint32_t bucket_count);
+
+  int32_t OnHistogramEnumeration(
+      ppapi::host::HostMessageContext* context,
+      const std::string& name,
+      int32_t sample,
+      int32_t boundary_value);
+
+  const base::FilePath& profile_directory_;
+  const GURL document_url_;
+  bool is_plugin_in_process_;
+
+  // Set of origins that can use UMA private APIs from NaCl.
+  std::set<std::string> allowed_origins_;
+  // Set of histograms that can be used from this interface.
+  std::set<std::string> allowed_histograms_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperUMAMessageFilter);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_RENDERER_HOST_PEPPER_PEPPER_UMA_MESSAGE_FILTER_H_