Make browser tests all run from a server instead of the local filesystem.

tests/html/html.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 window_open_test: Skip # http://dartbug.com/5151
 
 event_test: Skip  # Issue 1996
 webgl_1_test: Skip  # Issue 1495
 
 # Layout tests are only supported on DRT.
@@ skipping 52 matching lines @@
 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_types_test/supported_shadow: Fail
 exceptions_test: Fail
 fileapi_test: Fail
-indexeddb_1_test/supported: Fail         # IE10 does not support from file://
 inner_frame_test: Skip
 input_element_test/supported_date: Fail
 input_element_test/supported_datetime: Fail
 input_element_test/supported_datetime-local: Fail
 input_element_test/supported_month: Fail
 input_element_test/supported_time: Fail
 input_element_test/supported_week: Fail
 isolates_test: Skip
 localstorage_test: Fail
 measurement_test: Fail, Pass
 messageevent_test: Fail
 mutationobserver_test/supported: Fail
 native_gc_test: Fail, Pass # BUG(7774): Untriaged.
 serialized_script_value_test: Fail
 shadow_dom_test/supported: Fail
 storage_test: Fail, Pass
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 svg_3_test: Fail
-url_test: Fail                           # IE10 does not support from file://
 websql_test: Fail
 window_open_test: Skip
 xhr_test: Fail
 xsltprocessor_test: Fail
 
 [ $runtime == ie9 ]
 document_test/supports_cssCanvasContext: Fail
 element_test/click: Fail                # IE does not support firing this event.
 element_types_test/supported_content: Fail
 element_types_test/supported_datalist: Fail
@@ skipping 36 matching lines @@
 input_element_test/supported_search: Fail
 input_element_test/supported_tel: Fail
 input_element_test/supported_time: Fail
 input_element_test/supported_url: Fail
 input_element_test/supported_week: Fail
 messageevent_test: Fail
 mutationobserver_test/supported: Fail
 postmessage_structured_test: Skip   # BUG(5685): times out.
 serialized_script_value_test: Fail
 shadow_dom_test/supported: Fail
-storage_test: Fail
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 url_test: Fail              # IE9 does not support createObjectURL (it is supported in IE10)
 websocket_test/supported: Fail
 window_open_test: Skip      # BUG(4016)
 xsltprocessor_test: Skip    # BUG(4016)
 isolates_test: Skip         # BUG(4016)
 xhr_test: Skip              # BUG(4016)
 xhr_cross_origin_test: Fail # Issue 6016.
@@ skipping 73 matching lines @@
 dart_object_local_storage_test: Skip  # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
 document_test/supports_cssCanvasContext: Fail
 element_types_test/supported_content: Fail
 element_types_test/supported_details: Fail
 element_types_test/supported_embed: Fail
 element_types_test/supported_keygen: Fail
 element_types_test/supported_shadow: Fail
 element_types_test/supported_track: Fail
 exceptions_test: Fail      # Uses webkitotifications, no analogue in moz
 fileapi_test: Fail         # FF does not support filesystem APIs.
-indexeddb_1_test/supported: Fail  # FF disables indexedDB from file URLs.
 # setup code fails. prepare. (DOM callback has errors) Caught [object Event]
 inner_frame_test: Skip
 input_element_test/supported_date: Fail
 input_element_test/supported_datetime: Fail
 input_element_test/supported_datetime-local: Fail
 input_element_test/supported_month: Fail
 input_element_test/supported_time: Fail
 input_element_test/supported_week: Fail
 input_element_test/supported_number: Fail
 input_element_test/supported_range: Fail
 shadow_dom_test/supported: Fail
 # Interfaces not implemented: SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGStylable
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
 transferables_test: Fail   # Issue 3392.
 websql_test: Fail # FF does not support web SQL
-# Exception... "Access to restricted URI denied" code: "1012" nsresult: "0x805303f4"
-#    (NS_ERROR_DOM_BAD_URI) ...
-xhr_test: Fail
 
 [ $runtime == ie9 && ($system == linux || $system == macos) ]
 *: Skip
 
 [ $runtime == safari && ($system == linux || $system == windows) ]
 *: Skip
 
 # 'html' tests import the HTML library, so they only make sense in
 # a browser environment.
 [ $runtime == vm ]
 *: Skip
 
 [ $compiler == dart2js ]
 transferables_test: Skip # until isInstance works in dart2js
 
 [ $compiler == dart2js && ($runtime == drt || $runtime == ff) ]
 request_animation_frame_test: Skip # Async test hangs.
 
 [ $compiler == dart2js && ($runtime == drt || $runtime == chrome || $runtime == ff || $runtime == safari) ]
 isolates_test: Skip   # Timeout because leg does not support web workers.
 
 [ $compiler == dart2js && $runtime == ff ]
-xhr_test: Skip # Timeout
 inner_frame_test: Skip # Timeout
 svg_3_test: Skip # Timeout