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

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index 7793fe0a91e85bb25b173dffdde3cfad43131708..4cea1dda0f2411b2b08b0d775951ecfdb7a9fb6a 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -56,7 +56,6 @@ 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
@@ -76,7 +75,6 @@ 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
@@ -132,7 +130,6 @@ 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
@@ -220,7 +217,6 @@ 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
@@ -238,9 +234,6 @@ 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
@@ -263,6 +256,5 @@ request_animation_frame_test: Skip # Async test hangs.
 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