Extending supported sample rate from 3.0KHz to 192.0KHz for OfflineAudioContext.

Source/modules/webaudio/OfflineAudioContext.cpp

Index: Source/modules/webaudio/OfflineAudioContext.cpp
diff --git a/Source/modules/webaudio/OfflineAudioContext.cpp b/Source/modules/webaudio/OfflineAudioContext.cpp
index 868b8c454585576f651bfabd59f78ad1aabec943..47d854083d0fc359509bd247d0df9b7b26ee2273 100644
--- a/Source/modules/webaudio/OfflineAudioContext.cpp
+++ b/Source/modules/webaudio/OfflineAudioContext.cpp
@@ -67,8 +67,9 @@ OfflineAudioContext* OfflineAudioContext::create(ExecutionContext* context, unsi
     }
 
     if (!isSampleRateRangeGood(sampleRate)) {
-        exceptionState.throwDOMException(SyntaxError, "sample rate (" + String::number(sampleRate) + ") must be in the range 44100-96000 Hz.");
-        return 0;
+        exceptionState.throwDOMException(IndexSizeError, ExceptionMessages::indexOutsideRange(
+            "sampleRate", sampleRate, 3000.f, ExceptionMessages::InclusiveBound, 192000.f, ExceptionMessages::InclusiveBound));

[Raymond Toy, 2014/09/04 17:27:20]

Is the .f required here? I don't think it's important if we use an integer or
float value in the message.

[KhNo, 2014/09/05 05:03:25]

There is compile error.
../../third_party/WebKit/Source/bindings/core/v8/ExceptionMessages.h:105:19:
note: candidate template ignored: deduced conflicting types for parameter
'NumberType' ('float' vs. 'int')

I have added type casting to (float).

[Raymond Toy, 2014/09/05 05:10:31]

Oh, sorry about that! I think you should either use static_cast<float>(3000) or
3000.0f.

[KhNo, 2014/09/05 05:32:39]

No problem.

+        return nullptr;
     }
 
     OfflineAudioContext* audioContext = adoptRefCountedGarbageCollectedWillBeNoop(new OfflineAudioContext(document, numberOfChannels, numberOfFrames, sampleRate));