Move CdmResultPromise to media/blink.

media/blink/cdm_result_promise_helper.cc

Index: media/blink/cdm_result_promise_helper.cc
diff --git a/media/blink/cdm_result_promise_helper.cc b/media/blink/cdm_result_promise_helper.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c96121a0fed7aac94bb58165df4f8112e9b12b74
--- /dev/null
+++ b/media/blink/cdm_result_promise_helper.cc
@@ -0,0 +1,68 @@
+// 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.
+
+#include "media/blink/cdm_result_promise_helper.h"
+
+#include "base/logging.h"
+#include "base/metrics/histogram.h"
+
+namespace media {
+
+CdmResultForUMA ConvertCdmExceptionToResultForUMA(
+    MediaKeys::Exception exception_code) {
+  switch (exception_code) {
+    case MediaKeys::NOT_SUPPORTED_ERROR:
+      return NOT_SUPPORTED_ERROR;
+    case MediaKeys::INVALID_STATE_ERROR:
+      return INVALID_STATE_ERROR;
+    case MediaKeys::INVALID_ACCESS_ERROR:
+      return INVALID_ACCESS_ERROR;
+    case MediaKeys::QUOTA_EXCEEDED_ERROR:
+      return QUOTA_EXCEEDED_ERROR;
+    case MediaKeys::UNKNOWN_ERROR:
+      return UNKNOWN_ERROR;
+    case MediaKeys::CLIENT_ERROR:
+      return CLIENT_ERROR;
+    case MediaKeys::OUTPUT_ERROR:
+      return OUTPUT_ERROR;
+  }
+  NOTREACHED();
+  return UNKNOWN_ERROR;
+}
+
+blink::WebContentDecryptionModuleException ConvertCdmException(
+    MediaKeys::Exception exception_code) {
+  switch (exception_code) {
+    case MediaKeys::NOT_SUPPORTED_ERROR:
+      return blink::WebContentDecryptionModuleExceptionNotSupportedError;
+    case MediaKeys::INVALID_STATE_ERROR:
+      return blink::WebContentDecryptionModuleExceptionInvalidStateError;
+    case MediaKeys::INVALID_ACCESS_ERROR:
+      return blink::WebContentDecryptionModuleExceptionInvalidAccessError;
+    case MediaKeys::QUOTA_EXCEEDED_ERROR:
+      return blink::WebContentDecryptionModuleExceptionQuotaExceededError;
+    case MediaKeys::UNKNOWN_ERROR:
+      return blink::WebContentDecryptionModuleExceptionUnknownError;
+    case MediaKeys::CLIENT_ERROR:
+      return blink::WebContentDecryptionModuleExceptionClientError;
+    case MediaKeys::OUTPUT_ERROR:
+      return blink::WebContentDecryptionModuleExceptionOutputError;
+  }
+  NOTREACHED();
+  return blink::WebContentDecryptionModuleExceptionUnknownError;
+}
+
+void ReportCdmResultUMA(const std::string& uma_name, CdmResultForUMA result) {
+  if (uma_name.empty())
+    return;
+
+  base::LinearHistogram::FactoryGet(
+      uma_name,
+      1,
+      NUM_RESULT_CODES,
+      NUM_RESULT_CODES + 1,
+      base::HistogramBase::kUmaTargetedHistogramFlag)->Add(result);
+}
+
+}  // namespace media