Add UMA reporting for GpuVideoDecoder::Initialize status.

media/base/pipeline_status.cc

+// Copyright (c) 2012 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.
+
+#include "media/base/pipeline_status.h"
+
+#include "base/bind.h"
+#include "base/metrics/histogram.h"
+
+namespace media {
+
+static void ReportAndRun(const std::string& name,
+                         const PipelineStatusCB& cb,
+                         PipelineStatus status) {
+  UMA_HISTOGRAM_ENUMERATION(name, status, PIPELINE_STATUS_MAX);
+  cb.Run(status);
+}
+
+PipelineStatusCB CreateUMAReportingPipelineCB(const std::string& name,
+                                              const PipelineStatusCB& cb) {
+  return base::Bind(&ReportAndRun, name, cb);
+}
+
+}  // namespace media