Implement IIRFilter node for WebAudio.

third_party/WebKit/LayoutTests/webaudio/iirfilter-basic-expected.txt

Index: third_party/WebKit/LayoutTests/webaudio/iirfilter-basic-expected.txt
diff --git a/third_party/WebKit/LayoutTests/webaudio/iirfilter-basic-expected.txt b/third_party/WebKit/LayoutTests/webaudio/iirfilter-basic-expected.txt
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index 0000000000000000000000000000000000000000..f41fb8cdc730a1bd03ac7c0fbbe3542ccb6fa581
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+Test Basic IIRFilterNode Properties
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS context.createIIRFilter is defined.
+PASS numberOfInputs is equal to 1.
+PASS numberOfOutputs is equal to 1.
+PASS channelCountMode is equal to max.
+PASS channelInterpretation is equal to speakers.
+PASS All basic IIRFilter parameters are correct.
+
+PASS createIIRFilter() threw TypeError: Failed to execute 'createIIRFilter' on 'AudioContext': 2 arguments required, but only 0 present..
+PASS createIIRFilter(new Float32Array(1)) threw TypeError: Failed to execute 'createIIRFilter' on 'AudioContext': 2 arguments required, but only 1 present..
+PASS createIIRFilter(null, null) threw TypeError: Failed to execute 'createIIRFilter' on 'AudioContext': The 1st argument is neither an array, nor does it have indexed properties..
+PASS createIIRFilter([], []) threw NotSupportedError: Failed to execute 'createIIRFilter' on 'AudioContext': The number of feedback coefficients provided (0) is outside the range [1, 20]..
+PASS createIIRFilter([1], []) threw NotSupportedError: Failed to execute 'createIIRFilter' on 'AudioContext': The number of feedback coefficients provided (0) is outside the range [1, 20]..
+PASS createIIRFilter([], [1]) threw NotSupportedError: Failed to execute 'createIIRFilter' on 'AudioContext': The number of feedforward coefficients provided (0) is outside the range [1, 20]..
+PASS createIIRFilter(new Float32Array(20), new Float32Array(20)) did not throw an exception.
+PASS createIIRFilter(new Float32Array(21), [1]) threw NotSupportedError: Failed to execute 'createIIRFilter' on 'AudioContext': The number of feedforward coefficients provided (21) is outside the range [1, 20]..
+PASS createIIRFilter([1], new Float32Array(21)) threw NotSupportedError: Failed to execute 'createIIRFilter' on 'AudioContext': The number of feedback coefficients provided (21) is outside the range [1, 20]..
+PASS createIIRFilter([1], new Float32Array(2)) threw InvalidStateError: Failed to execute 'createIIRFilter' on 'AudioContext': First feedback coefficient cannot be zero..
+PASS createIIRFilter(new Float32Array(10), [1]) threw InvalidStateError: Failed to execute 'createIIRFilter' on 'AudioContext': At least one feedforward coefficient must be non-zero..
+PASS createIIRFilter([1], [1, NaN, Infinity]) threw InvalidStateError: Failed to execute 'createIIRFilter' on 'AudioContext': The feedback coefficient 1 is infinite..
+PASS createIIRFilter([1, NaN, Infinity], [1]) threw InvalidStateError: Failed to execute 'createIIRFilter' on 'AudioContext': The feedforward coefficient 1 is infinite..
+PASS createIIRFilter([1, 'abc', []], [1]) threw InvalidStateError: Failed to execute 'createIIRFilter' on 'AudioContext': The feedforward coefficient 1 is not a number..
+PASS All exceptions for createIIRFilter were correctly thrown.
+
+PASS getFrequencyResponse(null, new Float32Array(1), new Float32Array(1)) threw TypeError: Failed to execute 'getFrequencyResponse' on 'IIRFilterNode': parameter 1 is not of type 'Float32Array'..
+PASS getFrequencyResponse(new Float32Array(1), null, new Float32Array(1)) threw TypeError: Failed to execute 'getFrequencyResponse' on 'IIRFilterNode': parameter 2 is not of type 'Float32Array'..
+PASS getFrequencyResponse(new Float32Array(1), new Float32Array(1), null) threw TypeError: Failed to execute 'getFrequencyResponse' on 'IIRFilterNode': parameter 3 is not of type 'Float32Array'..
+PASS getFrequencyResponse(new Float32Array(10), new Float32Array(1), new Float32Array(20)) threw NotSupportedError: Failed to execute 'getFrequencyResponse' on 'IIRFilterNode': The magResponse length provided (1) is less than the minimum bound (10)..
+PASS getFrequencyResponse(new Float32Array(10), new Float32Array(20), new Float32Array(1)) threw NotSupportedError: Failed to execute 'getFrequencyResponse' on 'IIRFilterNode': The phaseResponse length provided (1) is less than the minimum bound (10)..
+PASS getFrequencyResponse(new Float32Array(10), new Float32Array(20), new Float32Array(30)) did not throw an exception.
+PASS getFrequencyResponse exceptions handled correctly.
+
+PASS successfullyParsed is true
+
+TEST COMPLETE
+