Move CdmResultPromise to media/blink.

content/renderer/media/cdm_result_promise.cc

-// 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 "content/renderer/media/cdm_result_promise.h"
-
-#include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "third_party/WebKit/public/platform/WebString.h"
-
-namespace content {
-
-namespace {
-
-// 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 ResultCodeForUMA {
-  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
-};
-
-static blink::WebContentDecryptionModuleException ConvertException(
-    media::MediaKeys::Exception exception_code) {
-  switch (exception_code) {
-    case media::MediaKeys::NOT_SUPPORTED_ERROR:
-      return blink::WebContentDecryptionModuleExceptionNotSupportedError;
-    case media::MediaKeys::INVALID_STATE_ERROR:
-      return blink::WebContentDecryptionModuleExceptionInvalidStateError;
-    case media::MediaKeys::INVALID_ACCESS_ERROR:
-      return blink::WebContentDecryptionModuleExceptionInvalidAccessError;
-    case media::MediaKeys::QUOTA_EXCEEDED_ERROR:
-      return blink::WebContentDecryptionModuleExceptionQuotaExceededError;
-    case media::MediaKeys::UNKNOWN_ERROR:
-      return blink::WebContentDecryptionModuleExceptionUnknownError;
-    case media::MediaKeys::CLIENT_ERROR:
-      return blink::WebContentDecryptionModuleExceptionClientError;
-    case media::MediaKeys::OUTPUT_ERROR:
-      return blink::WebContentDecryptionModuleExceptionOutputError;
-  }
-  NOTREACHED();
-  return blink::WebContentDecryptionModuleExceptionUnknownError;
-}
-
-static ResultCodeForUMA ConvertExceptionToUMAResult(
-    media::MediaKeys::Exception exception_code) {
-  switch (exception_code) {
-    case media::MediaKeys::NOT_SUPPORTED_ERROR:
-      return NOT_SUPPORTED_ERROR;
-    case media::MediaKeys::INVALID_STATE_ERROR:
-      return INVALID_STATE_ERROR;
-    case media::MediaKeys::INVALID_ACCESS_ERROR:
-      return INVALID_ACCESS_ERROR;
-    case media::MediaKeys::QUOTA_EXCEEDED_ERROR:
-      return QUOTA_EXCEEDED_ERROR;
-    case media::MediaKeys::UNKNOWN_ERROR:
-      return UNKNOWN_ERROR;
-    case media::MediaKeys::CLIENT_ERROR:
-      return CLIENT_ERROR;
-    case media::MediaKeys::OUTPUT_ERROR:
-      return OUTPUT_ERROR;
-  }
-  NOTREACHED();
-  return UNKNOWN_ERROR;
-}
-
-static void ReportUMA(std::string uma_name, ResultCodeForUMA 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
-
-template <typename... T>
-CdmResultPromise<T...>::CdmResultPromise(
-    const blink::WebContentDecryptionModuleResult& result,
-    const std::string& uma_name)
-    : web_cdm_result_(result), uma_name_(uma_name) {
-}
-
-template <typename... T>
-CdmResultPromise<T...>::~CdmResultPromise() {
-}
-
-template <>
-void CdmResultPromise<>::resolve() {
-  MarkPromiseSettled();
-  ReportUMA(uma_name_, SUCCESS);
-  web_cdm_result_.complete();
-}
-
-template <>
-void CdmResultPromise<media::KeyIdsVector>::resolve(
-    const media::KeyIdsVector& result) {
-  // TODO(jrummell): Update blink::WebContentDecryptionModuleResult to
-  // handle the set of keys.
-  reject(media::MediaKeys::NOT_SUPPORTED_ERROR, 0, "Not implemented.");
-}
-
-template <typename... T>
-void CdmResultPromise<T...>::reject(media::MediaKeys::Exception exception_code,
-                                    uint32 system_code,
-                                    const std::string& error_message) {
-  MarkPromiseSettled();
-  ReportUMA(uma_name_, ConvertExceptionToUMAResult(exception_code));
-  web_cdm_result_.completeWithError(ConvertException(exception_code),
-                                    system_code,
-                                    blink::WebString::fromUTF8(error_message));
-}
-
-NewSessionCdmResultPromise::NewSessionCdmResultPromise(
-    const blink::WebContentDecryptionModuleResult& result,
-    const std::string& uma_name,
-    const SessionInitializedCB& new_session_created_cb)
-    : web_cdm_result_(result),
-      uma_name_(uma_name),
-      new_session_created_cb_(new_session_created_cb) {
-}
-
-NewSessionCdmResultPromise::~NewSessionCdmResultPromise() {
-}
-
-void NewSessionCdmResultPromise::resolve(const std::string& web_session_id) {
-  MarkPromiseSettled();
-  ReportUMA(uma_name_, SUCCESS);
-  blink::WebContentDecryptionModuleResult::SessionStatus status =
-      new_session_created_cb_.Run(web_session_id);
-  web_cdm_result_.completeWithSession(status);
-}
-
-void NewSessionCdmResultPromise::reject(
-    media::MediaKeys::Exception exception_code,
-    uint32 system_code,
-    const std::string& error_message) {
-  MarkPromiseSettled();
-  ReportUMA(uma_name_, ConvertExceptionToUMAResult(exception_code));
-  web_cdm_result_.completeWithError(ConvertException(exception_code),
-                                    system_code,
-                                    blink::WebString::fromUTF8(error_message));
-}
-
-// Explicit template instantiation for the templates needed.
-template class CdmResultPromise<>;
-template class CdmResultPromise<media::KeyIdsVector>;
-
-}  // namespace content