The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/717012126c57dfe596b6562f9ad17f2a7e537a5b

commit 717012126c57dfe596b6562f9ad17f2a7e537a5b
Author: rtoy <rtoy@chromium.org>
Date: Mon Jan 23 19:36:28 2017

Remove AudioSourceNode class

The MediaElementAudioSourceNode and MediaStreamAudioSourceNode were
implemented as deriving from an AudioSourceNode.  This is not part of
the spec; these nodes are derived from AudioNode.  This was only
visible in the prototype chain for these classes.  The AudioSourceNode
is otherwise invisible to the user; it is not constructible and has no
properties.

Thus, remove the AudioSourceNode class.

Intent: https://groups.google.com/a/chromium.org/d/msg/blink-dev/D-QJm9GCisc/gSCZwIrfFgAJ

BUG= 663818 
TEST=none

Review-Url: https://codereview.chromium.org/2621923003
Cr-Commit-Position: refs/heads/master@{#445433}

[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/LayoutTests/platform/mac/virtual/stable/webexposed/global-interface-listing-expected.txt
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/LayoutTests/platform/win/virtual/stable/webexposed/global-interface-listing-expected.txt
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-expected.txt
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/modules_idl_files.gni
[delete] https://crrev.com/69b49a8ebcb7b1efddf89262b0ca36a300d756a5/third_party/WebKit/Source/modules/webaudio/AudioSourceNode.h
[delete] https://crrev.com/69b49a8ebcb7b1efddf89262b0ca36a300d756a5/third_party/WebKit/Source/modules/webaudio/AudioSourceNode.idl
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/BUILD.gn
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.cpp
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.h
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.idl
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioSourceNode.cpp
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioSourceNode.h
[modify] https://crrev.com/717012126c57dfe596b6562f9ad17f2a7e537a5b/third_party/WebKit/Source/modules/webaudio/MediaStreamAudioSourceNode.idl