Refactor WebAudio test directory

third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start-expected.txt

Index: third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start-expected.txt
diff --git a/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start-expected.txt b/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start-expected.txt
deleted file mode 100644
index 74c056c08fa68f16fef8a3a3e5da1a868451254d..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start-expected.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Tests AudioBufferSourceNode start() with a variety of offsets and durations.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-PASS start(when): implicitly play whole buffer from beginning to end
-PASS start(when, 0): play whole buffer from beginning to end explicitly giving offset of 0
-PASS start(when, 0, 8_frames): play whole buffer from beginning to end explicitly giving offset of 0 and duration of 8 frames
-PASS start(when, 4_frames): play with explicit non-zero offset
-PASS start(when, 4_frames, 4_frames): play with explicit non-zero offset and duration
-PASS start(when, 7_frames): play with explicit non-zero offset near end of buffer
-PASS start(when, 8_frames): play with explicit offset at end of buffer
-PASS start(when, 9_frames): play with explicit offset past end of buffer
-PASS start(when, 0, 15_frames): play with whole buffer, with long duration (clipped)
-PASS successfullyParsed is true
-
-TEST COMPLETE
-