Implement suspend() and resume() for OfflineAudioContext

third_party/WebKit/Source/modules/webaudio/AudioContext.cpp

Index: third_party/WebKit/Source/modules/webaudio/AudioContext.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioContext.cpp b/third_party/WebKit/Source/modules/webaudio/AudioContext.cpp
index 0522b8441337523cc796ba652ce99c5050f08af5..468f59d8336b6b16f040f0c02ef7a327f584c647 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioContext.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AudioContext.cpp
@@ -130,6 +130,18 @@ ScriptPromise AudioContext::resumeContext(ScriptState* scriptState)
     return promise;
 }
 
+ScriptPromise AudioContext::suspendContext(ScriptState* scriptState, double suspendTime)
+{
+    // This CANNOT be called on AudioContext; it is to implement the pure
+    // virtual interface from AbstractAudioContext.
+    RELEASE_ASSERT_NOT_REACHED();
+
+    return ScriptPromise::rejectWithDOMException(

[yhirano, 2015/11/06 08:13:29]

RELEASE_ASSERT always takes effect, so L139-L142 does not run. Just returning
ScriptPromise() may be enough.

[hongchan, 2015/11/06 19:33:40]

Since we don't need to define this at all here, I am going to remove this method
as whole.

+        scriptState,
+        DOMException::create(InvalidStateError,
+            "Only offline audio context can be suspended at the specified time."));
+}
+
 ScriptPromise AudioContext::closeContext(ScriptState* scriptState)
 {
     if (isContextClosed()) {