GitLab

Create directories for basic WebAudio nodes and objects and move the
tests into the appropriate directory.

Files were just moved, with automatic update of script paths using

for f in $*
do
  sed -i 's;\(<script.*\)src=";\1src="../;' $f
done

and a few files were manually updated to get appropriate paths for
some audio resources:

AudioBufferSource/audiobuffersource.html
decodeAudioData/decode-audio-data-basic.html
OfflineAudioContext/offlineaudiocontext-detached-no-crash.html
Panner/hrtf-database.html
ScriptProcessor/scriptprocessornode-detached-no-crash.html

and the following needed to be updated due to the path change:

decodeAudioData/decode-audio-data-basic-expected.txt

BUG=647278
TEST=All layout tests still pass

Review-Url: https://codereview.chromium.org/2581463002
Cr-Commit-Position: refs/heads/master@{#439586}