media: Add experimental feature to enable Mojo CDM on desktop Chromium

content/utility/utility_service_factory.cc

Index: content/utility/utility_service_factory.cc
diff --git a/content/utility/utility_service_factory.cc b/content/utility/utility_service_factory.cc
index 2f95ab61a62d1c9a09d73429b3935e218d85ed29..bd79d2ee6537cb55fd8edd09c7a1b7dfb6dc9b5c 100644
--- a/content/utility/utility_service_factory.cc
+++ b/content/utility/utility_service_factory.cc
@@ -14,7 +14,7 @@
 #include "content/public/utility/content_utility_client.h"
 #include "content/public/utility/utility_thread.h"
 #include "content/utility/utility_thread_impl.h"
-#include "media/mojo/features.h"
+#include "ppapi/features/features.h"
 #include "services/data_decoder/data_decoder_service.h"
 #include "services/data_decoder/public/interfaces/constants.mojom.h"
 #include "services/shape_detection/public/interfaces/constants.mojom.h"
@@ -22,8 +22,13 @@
 #include "services/video_capture/public/interfaces/constants.mojom.h"
 #include "services/video_capture/service_impl.h"
 
-#if BUILDFLAG(ENABLE_MOJO_MEDIA_IN_UTILITY_PROCESS)
-#include "media/mojo/services/media_service_factory.h"  // nogncheck
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
+#include "base/memory/ptr_util.h"
+#include "media/cdm/cdm_adapter_factory.h"           // nogncheck
+#include "media/mojo/features.h"                     // nogncheck
+#include "media/mojo/services/media_service.h"       // nogncheck
+#include "media/mojo/services/mojo_cdm_allocator.h"  // nogncheck
+#include "media/mojo/services/mojo_media_client.h"   // nogncheck
 #endif
 
 namespace {
@@ -38,6 +43,33 @@ namespace content {
 
 namespace {
 
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
+
+static_assert(BUILDFLAG(ENABLE_MOJO_MEDIA_IN_UTILITY_PROCESS), "");
+static_assert(BUILDFLAG(ENABLE_MOJO_CDM), "");
+
+std::unique_ptr<media::CdmAllocator> CreateCdmAllocator() {
+  return base::MakeUnique<media::MojoCdmAllocator>();
+}
+
+class CdmMojoMediaClient final : public media::MojoMediaClient {
+ public:
+  CdmMojoMediaClient() {}
+  ~CdmMojoMediaClient() override {}
+
+  std::unique_ptr<media::CdmFactory> CreateCdmFactory(
+      service_manager::mojom::InterfaceProvider* host_interfaces) override {
+    return base::MakeUnique<media::CdmAdapterFactory>(
+        base::Bind(&CreateCdmAllocator));
+  }
+};
+
+std::unique_ptr<service_manager::Service> CreateMediaService() {
+  return std::unique_ptr<service_manager::Service>(
+      new ::media::MediaService(base::MakeUnique<CdmMojoMediaClient>()));
+}
+#endif  // BUILDFLAG(ENABLE_PEPPER_CDMS)
+
 std::unique_ptr<service_manager::Service> CreateDataDecoderService() {
   content::UtilityThread::Get()->EnsureBlinkInitialized();
   return data_decoder::DataDecoderService::Create();
@@ -58,9 +90,9 @@ void UtilityServiceFactory::RegisterServices(ServiceMap* services) {
   services->insert(
       std::make_pair(video_capture::mojom::kServiceName, video_capture_info));
 
-#if BUILDFLAG(ENABLE_MOJO_MEDIA_IN_UTILITY_PROCESS)
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
   ServiceInfo info;
-  info.factory = base::Bind(&media::CreateMediaService);
+  info.factory = base::Bind(&CreateMediaService);
   services->insert(std::make_pair("media", info));
 #endif