The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11

commit d3e0367d4b1f7637609f09f5fc3dbab97ae11b11
Author: rtoy <rtoy@chromium.org>
Date: Wed May 25 16:51:52 2016

Move the exception logic to the AudioNode creator

The logic for handling exceptions is mostly in
AbstractAudioContext::createFoo() method.  The right place for this is
in the actual method that creates the node, FooNode::create().  Move
the logic there.

The result should be that AbstractAudioContext::createFoo() does nothing
except call Foo::create() and returns the created node.

This will be important when AudioNode constructors are added.

BUG= 608766 
TESTS=none; internal change that should be transparent.

Review-Url: https://codereview.chromium.org/1952793002
Cr-Commit-Position: refs/heads/master@{#395914}

[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/LayoutTests/webaudio/dom-exceptions-expected.txt
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AnalyserNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AnalyserNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AudioBufferSourceNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/AudioBufferSourceNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/BiquadFilterNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/BiquadFilterNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ChannelMergerNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ChannelMergerNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ChannelSplitterNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ChannelSplitterNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ConvolverNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ConvolverNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/DelayNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/DelayNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/DynamicsCompressorNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/DynamicsCompressorNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/GainNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/GainNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/IIRFilterNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioDestinationNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioDestinationNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioSourceNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioSourceNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/OscillatorNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/OscillatorNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/PannerNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/PannerNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/PeriodicWave.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/PeriodicWave.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ScriptProcessorNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/ScriptProcessorNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/StereoPannerNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/StereoPannerNode.h
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.cpp
[modify] https://crrev.com/d3e0367d4b1f7637609f09f5fc3dbab97ae11b11/third_party/WebKit/Source/modules/webaudio/WaveShaperNode.h