Added Web Share (navigator.share) experimental web API (stub).

third_party/WebKit/LayoutTests/webexposed/global-interface-listing-expected.txt

 CONSOLE WARNING: line 94: 'webkitOfflineAudioContext' is deprecated. Please use 'OfflineAudioContext' instead.
 CONSOLE WARNING: line 94: 'webkitAudioContext' is deprecated. Please use 'AudioContext' instead.
 CONSOLE WARNING: line 94: 'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead.
 CONSOLE WARNING: line 94: 'webkitIDBTransaction' is deprecated. Please use 'IDBTransaction' instead.
 CONSOLE WARNING: line 94: 'webkitIDBRequest' is deprecated. Please use 'IDBRequest' instead.
 CONSOLE WARNING: line 94: 'webkitIDBObjectStore' is deprecated. Please use 'IDBObjectStore' instead.
 CONSOLE WARNING: line 94: 'webkitIDBKeyRange' is deprecated. Please use 'IDBKeyRange' instead.
 CONSOLE WARNING: line 94: 'webkitIDBIndex' is deprecated. Please use 'IDBIndex' instead.
 CONSOLE WARNING: line 94: 'webkitIDBFactory' is deprecated. Please use 'IDBFactory' instead.
 CONSOLE WARNING: line 94: 'webkitIDBDatabase' is deprecated. Please use 'IDBDatabase' instead.
@@ skipping 3910 matching lines @@
     method getBattery
     method getGamepads
     method getInstalledRelatedApps
     method getUserMedia
     method isProtocolHandlerRegistered
     method javaEnabled
     method registerProtocolHandler
     method requestMIDIAccess
     method requestMediaKeySystemAccess
     method sendBeacon
+    method share

[Mike West, 2016/07/08 07:17:49]

Nit: Consider adding an `idlharness.js` test as well to verify the bits and
pieces of this  (http://testthewebforward.org/docs/testharness-idlharness.html:
see http/tests/credentialmanager/idl.html for a concrete example). It's probably
not critical given that you only have one method, but it would take care of a
few of the edge cases you're poking at in tests below.

[Matt Giuca, 2016/07/11 07:40:38]

Thanks for the details. I have written up the IDL test but I think landing that
is outside the scope of this CL (since as you say it isn't critical since I've
already covered it with other tests).

Along the way I found a bug (which I will write up tomorrow) in Chrome's
bindings which make it impossible for idlharness to actually pass. (idlharness
expects navigator.share.apply(null) to reject the promise, but it throws a
TypeError instead). This appears to be a problem with Chrome's IDL bindings
since it happens for all methods and disagrees with Firefox. I will do a proper
write-up tomorrow but I don't want to block this CL on sorting that mess out.

(Since very few things are using idlharness I'd guess this hasn't been tested
very thoroughly...)

     method unregisterProtocolHandler
     method vibrate
     method webkitGetUserMedia
 interface NetworkInformation : EventTarget
     attribute @@toStringTag
     getter downlinkMax
     getter onchange
     getter ontypechange
     getter type
     method constructor
@@ skipping 3719 matching lines @@
     method stop
     method webkitCancelAnimationFrame
     method webkitCancelRequestAnimationFrame
     method webkitRequestAnimationFrame
     method webkitRequestFileSystem
     method webkitResolveLocalFileSystemURL
 PASS successfullyParsed is true
 
 TEST COMPLETE