media: Add External Clear Key content browser test on Android

components/cdm/renderer/android_key_systems.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 "components/cdm/renderer/android_key_systems.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 73 matching lines @@
   }
   EmeFeatureSupport GetDistinctiveIdentifierSupport() const override {
     return EmeFeatureSupport::ALWAYS_ENABLED;
   }
 
  private:
   const std::string name_;
   const SupportedCodecs supported_codecs_;
 };
 
-}  // namespace
-
-static SupportedKeySystemResponse QueryKeySystemSupport(
+SupportedKeySystemResponse QueryKeySystemSupport(
     const std::string& key_system) {
   SupportedKeySystemRequest request;
   SupportedKeySystemResponse response;
 
   request.key_system = key_system;
   request.codecs = media::EME_CODEC_ALL;
   content::RenderThread::Get()->Send(
       new ChromeViewHostMsg_QueryKeySystemSupport(request, &response));
   DCHECK(!(response.compositing_codecs & ~media::EME_CODEC_ALL))
       << "unrecognized codec";
   DCHECK(!(response.non_compositing_codecs & ~media::EME_CODEC_ALL))
       << "unrecognized codec";
   return response;
 }
 
+}  // namespace
+
 void AddAndroidWidevine(
     std::vector<std::unique_ptr<KeySystemProperties>>* concrete_key_systems) {
   SupportedKeySystemResponse response = QueryKeySystemSupport(
       kWidevineKeySystem);
 
   // Since we do not control the implementation of the MediaDrm API on Android,
   // we assume that it can and will make use of persistence even though no
   // persistence-based features are supported.
 
   if (response.compositing_codecs != media::EME_CODEC_NONE) {
@@ skipping 22 matching lines @@
        it != key_system_names.end(); ++it) {
     SupportedKeySystemResponse response = QueryKeySystemSupport(*it);
     if (response.compositing_codecs != media::EME_CODEC_NONE) {
       concrete_key_systems->emplace_back(new AndroidPlatformKeySystemProperties(
           *it, response.compositing_codecs));
     }
   }
 }
 
 }  // namespace cdm