Adding support checks for partially supported element types and updating tests.

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index c07652e8ba9e38b0eaabe3bddb2f8be281fbdbe9..09afaf54dfdbb169c449da05d237398fff8c895b 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -10,7 +10,6 @@ xmldocument_test: Skip  # XML in dart:html is incomplete
 xmlelement_test: Skip  # XML in dart:html is incomplete
 
 [ $runtime == chrome ]
-contentelement_test: Fail   # Issue 5445: not currently supported on chrome stable.
 input_element_test/date: Pass, Fail      # Chrome stable does not support this input type.
 input_element_test/datetime: Fail        # Chrome stable does not support this input type.
 input_element_test/datetime-local: Fail  # Chrome stable does not support this input type.
@@ -66,11 +65,16 @@ history_test: Fail
 audiobuffersourcenode_test: Fail
 audiocontext_test: Fail
 canvasrenderingcontext2d_test: Fail, Pass
-contentelement_test: Fail
 css_test: Fail
 document_test/getCssCanvasContext: Fail # IE does not support this.
 element_test/additionalConstructors: Fail
 element_test/click: Fail                # IE does not support firing this event.
+element_types_test/supported_content: Fail
+element_types_test/supported_details: Fail
+element_types_test/supported_keygen: Fail
+element_types_test/supported_meter: Fail
+element_types_test/supported_object: Fail
+element_types_test/supported_output: Fail
 element_webkit_test: Fail
 exceptions_test: Fail
 fileapi_test: Fail
@@ -102,9 +106,17 @@ xhr_test: Fail
 xsltprocessor_test: Fail
 
 [ $runtime == ie9 ]
-contentelement_test: Fail   # ie9 does not support content element.
 document_test/getCssCanvasContext: Fail # IE does not support this.
 element_test/click: Fail                # IE does not support firing this event.
+element_types_test/supported_content: Fail
+element_types_test/supported_datalist: Fail
+element_types_test/supported_details: Fail
+element_types_test/supported_keygen: Fail
+element_types_test/supported_meter: Fail
+element_types_test/supported_object: Fail
+element_types_test/supported_output: Fail
+element_types_test/supported_progress: Fail
+element_types_test/supported_track: Fail
 form_data_test: Fail # Issue 4793.
 form_element_test: Fail # Issue 4793.
 inner_frame_test: Skip # Issue 5727 (timeout)
@@ -165,6 +177,7 @@ xhr_cross_origin_test: Fail # Issue 6016.
 # with Safari 6.
 audiocontext_test: Crash, Fail # Issue: 7414
 element_test/elements: Crash, Fail # Issue: 7414
+element_types_test/supported_datalist: Fail
 performance_api_test: Fail # window.performance.timing not in Safari 6.
 indexeddb_1_test/supported: Fail
 input_element_test/date: Fail            # Safari does not support this input type.
@@ -176,7 +189,6 @@ input_element_test/time: Fail, Crash     # Safari does not support this input ty
 input_element_test/week: Fail, Crash     # Safari does not support this input type.
 fileapi_test: Fail # requestFileSystem not supported in Safari 6.
 datalistelement_test: Fail # HTMLDataListElement not yet supported in Safari.
-contentelement_test: Fail # Safari 6 does not support content element.
 # TODO(efortuna): Make our test framework able to separate tests out by browser
 # version.
 datalistelement_test: Fail # Issue: 7414
@@ -199,7 +211,6 @@ element_test/children: Fail # Issue: 7413
 audiobuffersourcenode_test: Fail
 cache_test: Fail
 canvas_test: Pass,Fail
-contentelement_test: Fail
 audiocontext_test: Fail
 blob_constructor_test: Fail
 canvas_using_html_test: Fail
@@ -236,10 +247,14 @@ websql_test: Skip # Timeout.
 audiobuffersourcenode_test: Fail # FF only has Audio element.
 audiocontext_test: Fail      # FF only has Audio element
 css_test: Fail               # No analog to WebKitCssMatrix
-contentelement_test: Fail    # FF does not support content element.
 dart_object_local_storage_test: Skip  # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
 document_test/getCssCanvasContext: Fail # FF does not support this.
 documentfragment_test: Fail
+element_types_test/supported_content: Fail
+element_types_test/supported_details: Fail
+element_types_test/supported_embed: Fail
+element_types_test/supported_track: Fail
+element_types_test/supported_keygen: Fail
 element_webkit_test: Fail
 exceptions_test: Fail      # Uses webkitotifications, no analogue in moz
 fileapi_test: Fail         # FF does not support filesystem APIs.