Add promise type to EME idl files

Now that the Blink IDL supports the Promise<T> syntax, update
the EME idl files with the promise type.

BUG=358271
TEST=existing EME tests pass

Review URL: https://codereview.chromium.org/694773004

git-svn-id: svn://svn.chromium.org/blink/trunk@185152 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.idl

@@ -39,13 +39,13 @@
     [CallWith=ScriptState] readonly attribute Promise closed;
 
     // session initialization
-    [CallWith=ScriptState] Promise generateRequest(DOMString initDataType, ArrayBuffer initData);
-    [CallWith=ScriptState] Promise generateRequest(DOMString initDataType, ArrayBufferView initData);
-    [CallWith=ScriptState] Promise load(DOMString sessionId);
+    [CallWith=ScriptState] Promise<void> generateRequest(DOMString initDataType, ArrayBuffer initData);
+    [CallWith=ScriptState] Promise<void> generateRequest(DOMString initDataType, ArrayBufferView initData);
+    [CallWith=ScriptState] Promise<boolean> load(DOMString sessionId);
 
     // session operations
-    [CallWith=ScriptState] Promise update(ArrayBuffer response);
-    [CallWith=ScriptState] Promise update(ArrayBufferView response);
-    [CallWith=ScriptState] Promise close();
-    [CallWith=ScriptState] Promise remove();
+    [CallWith=ScriptState] Promise<void> update(ArrayBuffer response);
+    [CallWith=ScriptState] Promise<void> update(ArrayBufferView response);
+    [CallWith=ScriptState] Promise<void> close();
+    [CallWith=ScriptState] Promise<void> remove();
 };

third_party/WebKit/Source/modules/encryptedmedia/MediaKeySystemAccess.idl

@@ -10,5 +10,5 @@
     TypeChecking=Interface
 ] interface MediaKeySystemAccess {
     readonly attribute DOMString keySystem;
-    [CallWith=ScriptState] Promise createMediaKeys();
+    [CallWith=ScriptState] Promise<MediaKeys> createMediaKeys();
 };

third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.idl

@@ -35,8 +35,8 @@ enum SessionType {
 ] interface MediaKeys {
     [CallWith=ScriptState] MediaKeySession createSession(optional SessionType sessionType = "temporary");
 
-    [CallWith=ScriptState] Promise setServerCertificate(ArrayBuffer serverCertificate);
-    [CallWith=ScriptState] Promise setServerCertificate(ArrayBufferView serverCertificate);
+    [CallWith=ScriptState] Promise<void> setServerCertificate(ArrayBuffer serverCertificate);
+    [CallWith=ScriptState] Promise<void> setServerCertificate(ArrayBufferView serverCertificate);
 
     static boolean isTypeSupported(DOMString keySystem, optional DOMString contentType = null);
 };

third_party/WebKit/Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.idl

@@ -7,5 +7,5 @@
 [
     RuntimeEnabled=EncryptedMedia
 ] partial interface Navigator {
-    [CallWith=ScriptState] Promise requestMediaKeySystemAccess(DOMString keySystem, optional sequence<MediaKeySystemOptions> supportedConfigurations);
+    [CallWith=ScriptState] Promise<MediaKeySystemAccess> requestMediaKeySystemAccess(DOMString keySystem, optional sequence<MediaKeySystemOptions> supportedConfigurations);
 };