Validate finiteness of HTMLMediaElement properties.

LayoutTests/media/video-test.js

Index: LayoutTests/media/video-test.js
diff --git a/LayoutTests/media/video-test.js b/LayoutTests/media/video-test.js
index e558c1db9a90094ddbfc71a27856c090e750edfb..3f73745a4ecd43c814c0be3bbaa811395bbcb695 100644
--- a/LayoutTests/media/video-test.js
+++ b/LayoutTests/media/video-test.js
@@ -225,7 +225,7 @@ function testException(testString, exceptionString) {
     } catch (ex) {
         var exception = ex;
     }
-    logResult(exception !== undefined && exception == eval(exceptionString),
+    logResult(exception !== undefined && exception + '' === exceptionString,

[acolwell GONE FROM CHROMIUM, 2014/03/29 01:40:08]

Why did you need to make this change? This could potentially effect a bunch of
tests if it changes the output.

[sandersd (OOO until July 31), 2014/03/31 20:41:08]

Looks like I didn't quite understand how the other tests were using this
function (it's not pretty, but cleaning it up is a different CL). I've reverted
this change.

         "TEST(" + testString + ") THROWS(" + exceptionString + ")");
 }