Adding a few new MSE tests based on the spec.

LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html

Index: LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html
diff --git a/LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html b/LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html
index 0ac4b63758f79d29a8f2724d8607c0769480e71b..da6ce126a345086d5f77ebcbae89c9cc4288a666 100644
--- a/LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html
+++ b/LayoutTests/http/tests/media/media-source/mediasource-endofstream-invaliderror.html
@@ -40,6 +40,51 @@
               test.failOnEvent(mediaElement, 'error');
               assert_equals(mediaSource.readyState, 'open');
 
+              test.expectEvent(mediaSource, 'sourceend');
+              mediaSource.endOfStream();
+
+              assert_equals(mediaSource.readyState, 'ended');
+              assert_throws("InvalidStateError",
+                            function() {  mediaSource.endOfStream(); },
+                            "endofStream() threw an exception when in ended state");

[acolwell GONE FROM CHROMIUM, 2014/05/08 15:16:32]

nit: Indent is off. Should be 4 spaces like above.

[prabhur1, 2014/05/08 17:59:22]

Done.

+              test.done();
+          }, 'Test MediaSource.endOfStream() with when readyState is ended.');
+          
+          mediasource_test(function(test, mediaElement, mediaSource)
+          {
+              test.failOnEvent(mediaElement, 'error');
+              assert_equals(mediaSource.readyState, 'open');
+
+              test.expectEvent(mediaSource, 'sourceend');
+              mediaSource.endOfStream();
+
+              assert_equals(mediaSource.readyState, 'ended');
+              assert_throws("InvalidStateError",
+                            function() {  mediaSource.endOfStream("decode"); },

[acolwell GONE FROM CHROMIUM, 2014/05/08 15:16:32]

ditto

[prabhur1, 2014/05/08 17:59:22]

Done.

+                            "endofStream() threw an exception when in ended state");
+              test.done();
+          }, 'Test MediaSource.endOfStream(decode) with when readyState is ended.');
+
+          mediasource_test(function(test, mediaElement, mediaSource)
+          {
+              test.failOnEvent(mediaElement, 'error');
+              assert_equals(mediaSource.readyState, 'open');
+
+              test.expectEvent(mediaSource, 'sourceend');
+              mediaSource.endOfStream();
+
+              assert_equals(mediaSource.readyState, 'ended');
+              assert_throws("InvalidStateError",
+                            function() {  mediaSource.endOfStream("network"); },

[acolwell GONE FROM CHROMIUM, 2014/05/08 15:16:32]

ditto

[prabhur1, 2014/05/08 17:59:22]

Done.

+                            "endofStream() threw an exception when in ended state");
+              test.done();
+          }, 'Test MediaSource.endOfStream(network) with when readyState is ended.');
+                              
+          mediasource_test(function(test, mediaElement, mediaSource)
+          {
+              test.failOnEvent(mediaElement, 'error');
+              assert_equals(mediaSource.readyState, 'open');
+
               assert_throws(new TypeError(),
                   function() { mediaSource.endOfStream(null); },
                   'endOfStream(null) throws TypeError');