Unsuppress/fix most indexeddb tests on Dartium

tests/html/html.status

 # Copyright (c) 2013, 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.
 
 interactive_test: Skip # Must be run manually.
 dromaeo_smoke_test: Skip # Issue 14521, 8257
 cross_frame_test: Skip # Test reloads itself. Issue 18558
 
 [ $compiler == none && ($runtime == dartium || $runtime == drt) ]
 
 js_array_test: Skip # Dartium JSInterop failure
 js_typed_interop_test: Skip # Dartium JSInterop failure
 mirrors_js_typed_interop_test: Skip # Dartium JSInterop failure
 
 cross_domain_iframe_test: RuntimeError # Dartium JSInterop failure
 custom/document_register_type_extensions_test/registration: RuntimeError # Dartium JSInterop failure
 custom/element_upgrade_test: RuntimeError # Dartium JSInterop failure
-indexeddb_2_test: Skip # Dartium JSInterop failure
+indexeddb_2_test: Fail # Dartium JSInterop failure. Identity preservation on array deferred copy.
 js_test/transferrables: RuntimeError # Dartium JSInterop failure
 js_test/JsArray: RuntimeError # Dartium JSInterop failure
 native_gc_test: Skip # Dartium JSInterop failure
 storage_quota_test/missingenumcheck: RuntimeError # Dartium JSInterop failure
 storage_quota_test/none: RuntimeError # Dartium JSInterop failure
 transferables_test: RuntimeError # Dartium JSInterop failure
 
-[ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
-form_data_test/functional: Skip # Issue 19726
-indexeddb_1_test/functional: Skip # Issue 19512 (timing out)
-indexeddb_4_test: Skip # Issue 19726
+[ $compiler == none && ($runtime == drt || $runtime == dartium ) ]
 worker_api_test: Fail # Issue 10223
 resource_http_test: Fail # Issue 24203
 
-[ $compiler == none && $mode == debug && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
+[ $compiler == none && $mode == debug && ($runtime == drt || $runtime == dartium ) ]
 datalistelement_test: Skip # Issue 20540
 
 [ $compiler == dart2js ]
 input_element_test/attributes: Fail # Issue 21555
 wrapping_collections_test: SkipByDesign # Testing an issue that is only relevant to Dartium
 
 [ $compiler == dart2js && $csp && $browser ]
 custom/js_custom_test: Fail # Issue 14643
 custom/element_upgrade_test: Fail # Issue 17298
 
 [ $compiler == dart2js && $browser ]
 custom/created_callback_test: Fail # Support for created constructor. Issue 14835
 fontface_loaded_test: Fail # Support for promises.
 storage_quota_test: Fail # Support for promises. API also not yet available anywhere.
 
 [ $compiler == dart2js && ($runtime == safari || $runtime == safarimobilesim || $runtime == ff  || $ie) ]
 custom/entered_left_view_test/viewless_document: Fail # Polyfill does not handle this
 fontface_test: Fail # Fontface not supported on these.
 custom/attribute_changed_callback_test/unsupported_on_polyfill: Fail # Polyfill does not support
 element_animate_test: Fail # Element.animate not supported on these browsers.
 
 [ $compiler == none && $runtime == dartium && $system == macos]
 canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Pass,Fail # Issue 11834
 
-[ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
+[ $compiler == none && ($runtime == drt || $runtime == dartium ) ]
 # postMessage in dartium always transfers the typed array buffer, never a view
 postmessage_structured_test/typed_arrays: Fail
 # Dartium seems to lose the data from the dispatchEvent.
 async_test: Fail # Uses spawn, not implemented from a DOM isolate in Dartium
 keyboard_event_test: Fail # Issue 13902
 isolates_test: Fail # Issue 13921
-indexeddb_3_test: Skip # Issue 19578.  Timeouts and RuntimeError
 fileapi_test/getFile: Pass, Fail # Issue 20488
 
-[ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) && $mode == debug ]
+[ $compiler == none && ($runtime == drt || $runtime == dartium ) && $mode == debug ]
 websocket_test/websocket: Skip # Issue 17666
 canvasrenderingcontext2d_test/drawImage_video_element_dataUrl: Skip # Issue 17666
 
 element_offset_test/offset: RuntimeError # Issue 17550
 request_animation_frame_test: Skip # Times out, and also passes while taking 4.00 minutes. Issue 19127.
 fileapi_test/fileEntry: Pass, RuntimeError # Issue 20488
-indexeddb_5_test: Pass, RuntimeError # Issue 21262
 native_gc_test: Pass, Slow
 
 [ $compiler == none && $runtime == drt && $system == windows ]
 worker_test/functional: Pass, Crash # Issue 9929.
 
 [ $compiler == dart2js && $runtime == chromeOnAndroid ]
 crypto_test/functional: Pass, Slow # TODO(dart2js-team): Please triage this failure.
 input_element_test/supported_datetime-local: Pass, Slow # TODO(dart2js-team): Please triage this failure.
 
 fileapi_test/entry: Fail, Pass # TODO(dart2js-team): Please triage this failure.
@@ skipping 334 matching lines @@
 queryall_test: fail
 track_element_constructor_test: StaticWarning
 transferables_test: StaticWarning
 typed_arrays_range_checks_test: StaticWarning
 typing_test: StaticWarning
 webgl_1_test: StaticWarning
 window_nosuchmethod_test: StaticWarning
 
 [ $compiler == dart2js && $cps_ir ]
 resource_http_test: Crash # (await for(var b in r.openRead()){bytes.addAll(b);}): await for