Fix attributes types on AnalyserNode as specification of web audio.

LayoutTests/webaudio/dom-exceptions.html

Index: LayoutTests/webaudio/dom-exceptions.html
diff --git a/LayoutTests/webaudio/dom-exceptions.html b/LayoutTests/webaudio/dom-exceptions.html
index d18575f6123821fb7769a86a1f1832e1a0782b65..fdaa4a18f24ba3b4cd1484bfac4b8889a9ed024e 100644
--- a/LayoutTests/webaudio/dom-exceptions.html
+++ b/LayoutTests/webaudio/dom-exceptions.html
@@ -73,6 +73,8 @@ function runTest() {
 
     shouldThrow("node.minDecibels = -10");
     shouldThrow("node.maxDecibels = -150");
+    shouldThrow("node.minDecibels = -30");
+    shouldThrow("node.maxDecibels = -100");

[Raymond Toy, 2014/03/27 17:33:09]

How are these two tests different from the two above?

[KhNo, 2014/03/28 02:25:23]

-30 and -100 are default values.
There were bugs when those are set exactly same value.
Previously There are just existed about bigger or less values.

[Raymond Toy, 2014/03/28 16:10:06]

Ah, so we set minDecibels = -30, which is the same as maxDecibels, so we should
signal an error, as required.  Nice catch.

     shouldThrow("node.smoothingTimeConstant = -0.1");
     shouldThrow("node.smoothingTimeConstant = 1.5");