[WIP][NotForLand] IDL dictionary support

Source/core/core.gypi

 {
     'includes': [
       'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/Animation.idl',
             'animation/AnimationEffect.idl',
             'animation/AnimationPlayer.idl',
@@ skipping 61 matching lines @@
             'dom/MutationRecord.idl',
             'dom/NamedNodeMap.idl',
             'dom/Node.idl',
             'dom/NodeFilter.idl',
             'dom/NodeIterator.idl',
             'dom/NodeList.idl',
             'dom/Notation.idl',
             'dom/ProcessingInstruction.idl',
             'dom/Range.idl',
             'dom/RequestAnimationFrameCallback.idl',
+            # FIXME: not for land
+            'dom/SomeDictionary.idl',
+            'dom/SomeDictionaryUser.idl',
             'dom/StringCallback.idl',
             'dom/Text.idl',
             'dom/Touch.idl',
             'dom/TouchList.idl',
             'dom/TreeWalker.idl',
             'dom/URL.idl',
             'dom/XMLDocument.idl',
             'dom/shadow/ShadowRoot.idl',
             'events/AnimationPlayerEvent.idl',
             'events/ApplicationCacheErrorEvent.idl',
@@ skipping 1992 matching lines @@
             'dom/ScriptableDocumentParser.h',
             'dom/ScriptedAnimationController.cpp',
             'dom/ScriptedAnimationController.h',
             'dom/SecurityContext.cpp',
             'dom/SecurityContext.h',
             'dom/SelectorQuery.cpp',
             'dom/SelectorQuery.h',
             'dom/ShadowTreeStyleSheetCollection.cpp',
             'dom/ShadowTreeStyleSheetCollection.h',
             'dom/SimulatedClickOptions.h',
+            # FIXME: not for land
+            'dom/SomeDictionaryUser.cpp',
+            'dom/SomeDictionaryUser.h',
             'dom/SpaceSplitString.cpp',
             'dom/StaticNodeList.cpp',
             'dom/StaticNodeList.h',
             'dom/StringCallback.cpp',
             'dom/StringCallback.h',
             'dom/StyleElement.cpp',
             'dom/StyleElement.h',
             'dom/StyleEngine.cpp',
             'dom/StyleEngine.h',
             'dom/StyleSheetCandidate.cpp',
@@ skipping 1319 matching lines @@
             'rendering/RenderOverflowTest.cpp',
             'rendering/RenderTableCellTest.cpp',
             'rendering/RenderTableRowTest.cpp',
             'rendering/shapes/BoxShapeTest.cpp',
             'testing/UnitTestHelpers.cpp',
             'testing/UnitTestHelpers.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }