Move CdmResultPromise to media/blink.

media/blink/cdm_result_promise_helper.h

Index: media/blink/cdm_result_promise_helper.h
diff --git a/media/blink/cdm_result_promise_helper.h b/media/blink/cdm_result_promise_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..2fe385d0f432636c03ec95607073ea248045787a
--- /dev/null
+++ b/media/blink/cdm_result_promise_helper.h
@@ -0,0 +1,42 @@
+// 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 MEDIA_BLINK_CDM_RESULT_PROMISE_HELPER_H_
+#define MEDIA_BLINK_CDM_RESULT_PROMISE_HELPER_H_
+
+#include <string>
+
+#include "media/base/media_export.h"
+#include "media/base/media_keys.h"
+#include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h"
+
+namespace media {
+
+// A superset of media::MediaKeys::Exception for UMA reporting. These values
+// should never be changed as it will affect existing reporting, and must match
+// the values for CdmPromiseResult in tools/metrics/histograms/histograms.xml.
+enum CdmResultForUMA {
+  SUCCESS = 0,
+  NOT_SUPPORTED_ERROR = 1,
+  INVALID_STATE_ERROR = 2,
+  INVALID_ACCESS_ERROR = 3,
+  QUOTA_EXCEEDED_ERROR = 4,
+  UNKNOWN_ERROR = 5,
+  CLIENT_ERROR = 6,
+  OUTPUT_ERROR = 7,
+  NUM_RESULT_CODES
+};
+
+MEDIA_EXPORT CdmResultForUMA
+    ConvertCdmExceptionToResultForUMA(MediaKeys::Exception exception_code);
+
+MEDIA_EXPORT blink::WebContentDecryptionModuleException ConvertCdmException(
+    MediaKeys::Exception exception_code);
+
+MEDIA_EXPORT void ReportCdmResultUMA(const std::string& uma_name,
+                                     CdmResultForUMA result);
+
+}  // namespace media
+
+#endif  // MEDIA_BLINK_CDM_RESULT_PROMISE_HELPER_H_