[Chromecast] Use CdmConfig to create CDM

1. Pass CdmConfig to CreatePlatformBrowserCdm.
2. Add |force_software_crypto| to AddChromecastKeySystems. When enable,
cast should use software based OEMCrypto in Widevine.

The CL just adds the parameter to the function, corresponding action
isn't added.

BUG=internal b/31575507
TEST=None

Review-Url: https://codereview.chromium.org/2478453002
Cr-Commit-Position: refs/heads/master@{#429668}

chromecast/media/cdm/cast_cdm_factory.cc

@@ -43,16 +43,14 @@ void CastCdmFactory::Create(
   ::media::CdmCreatedCB bound_cdm_created_cb =
       ::media::BindToCurrentLoop(cdm_created_cb);
 
-  DCHECK(!cdm_config.use_hw_secure_codecs)
-      << "Chromecast does not use |use_hw_secure_codecs|";
-
   CastKeySystem cast_key_system(GetKeySystemByName(key_system));
 
   scoped_refptr<chromecast::media::CastCdm> cast_cdm;
   if (cast_key_system == chromecast::media::KEY_SYSTEM_CLEAR_KEY) {
     // TODO(gunsch): handle ClearKey decryption. See crbug.com/441957
   } else {
-    cast_cdm = CreatePlatformBrowserCdm(cast_key_system, security_origin);
+    cast_cdm =
+        CreatePlatformBrowserCdm(cast_key_system, security_origin, cdm_config);
   }
 
   if (!cast_cdm) {
@@ -80,7 +78,8 @@ void CastCdmFactory::Create(
 
 scoped_refptr<CastCdm> CastCdmFactory::CreatePlatformBrowserCdm(
     const CastKeySystem& cast_key_system,
-    const GURL& security_origin) {
+    const GURL& security_origin,
+    const ::media::CdmConfig& cdm_config) {
   return nullptr;
 }
 

chromecast/media/cdm/cast_cdm_factory.h

@@ -15,6 +15,10 @@ namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
+namespace media {
+struct CdmConfig;
+}  // namespace media
+
 namespace chromecast {
 namespace media {
 
@@ -41,7 +45,8 @@ class CastCdmFactory : public ::media::CdmFactory {
   // Provides a platform-specific BrowserCdm instance.
   virtual scoped_refptr<CastCdm> CreatePlatformBrowserCdm(
       const CastKeySystem& cast_key_system,
-      const GURL& security_origin);
+      const GURL& security_origin,
+      const ::media::CdmConfig& cdm_config);
 
  protected:
   MediaResourceTracker* media_resource_tracker_;

chromecast/renderer/cast_content_renderer_client.cc

@@ -117,7 +117,9 @@ void CastContentRendererClient::RenderViewCreated(
 void CastContentRendererClient::AddSupportedKeySystems(
     std::vector<std::unique_ptr<::media::KeySystemProperties>>*
         key_systems_properties) {
-  AddChromecastKeySystems(key_systems_properties, false);
+  AddChromecastKeySystems(key_systems_properties,
+                          false /* enable_persistent_license_support */,
+                          false /* force_software_crypto */);
 }
 
 blink::WebPrescientNetworking*

chromecast/renderer/key_systems_cast.cc

@@ -86,7 +86,8 @@ class PlayReadyKeySystemProperties : public ::media::KeySystemProperties {
 void AddChromecastKeySystems(
     std::vector<std::unique_ptr<::media::KeySystemProperties>>*
         key_systems_properties,
-    bool enable_persistent_license_support) {
+    bool enable_persistent_license_support,
+    bool force_software_crypto) {
 #if defined(PLAYREADY_CDM_AVAILABLE)
 #if defined(OS_ANDROID)
   CHECK(!enable_persistent_license_support);

chromecast/renderer/key_systems_cast.h

@@ -18,7 +18,8 @@ namespace shell {
 void AddChromecastKeySystems(
     std::vector<std::unique_ptr<::media::KeySystemProperties>>*
         key_systems_properties,
-    bool enable_persistent_license_support);
+    bool enable_persistent_license_support,
+    bool force_software_crypto);
 
 }  // namespace shell
 }  // namespace chromecast