Move Clipboard-related code from core/dom to core/clipboard

Source/core/core.gypi

Index: Source/core/core.gypi
diff --git a/Source/core/core.gypi b/Source/core/core.gypi
index 36d58688065d0b13df52b115226b6684b09b9829..2304ed69b890051efc8f71f7f962e2a8aa6be596 100644
--- a/Source/core/core.gypi
+++ b/Source/core/core.gypi
@@ -5,6 +5,9 @@
             'animation/Animation.idl',
             'animation/Player.idl',
             'animation/TimedItem.idl',
+            'clipboard/Clipboard.idl',
+            'clipboard/DataTransferItem.idl',
+            'clipboard/DataTransferItemList.idl',
             'css/CSS.idl',
             'css/CSSCharsetRule.idl',
             'css/CSSFontFaceLoadEvent.idl',
@@ -50,7 +53,6 @@
             'dom/CharacterData.idl',
             'dom/ClientRect.idl',
             'dom/ClientRectList.idl',
-            'dom/Clipboard.idl',
             'dom/Comment.idl',
             'dom/DOMError.idl',
             'dom/DOMException.idl',
@@ -59,8 +61,6 @@
             'dom/DOMStringList.idl',
             'dom/DOMStringMap.idl',
             'dom/DOMTokenList.idl',
-            'dom/DataTransferItem.idl',
-            'dom/DataTransferItemList.idl',
             'dom/Document.idl',
             'dom/DocumentFragment.idl',
             'dom/DocumentType.idl',
@@ -614,6 +614,18 @@
             'animation/css/CSSPendingAnimations.h',
             'animation/css/TransitionTimeline.cpp',
             'animation/css/TransitionTimeline.h',
+            'clipboard/Clipboard.cpp',
+            'clipboard/Clipboard.h',
+            'clipboard/DataObject.cpp',
+            'clipboard/DataObject.h',
+            'clipboard/DataObjectItem.cpp',
+            'clipboard/DataObjectItem.h',
+            'clipboard/DataTransferItem.cpp',
+            'clipboard/DataTransferItem.h',
+            'clipboard/DataTransferItemList.cpp',
+            'clipboard/DataTransferItemList.h',
+            'clipboard/Pasteboard.cpp',
+            'clipboard/Pasteboard.h',
             'css/BasicShapeFunctions.cpp',
             'css/CSSArrayFunctionValue.cpp',
             'css/CSSArrayFunctionValue.h',
@@ -1847,7 +1859,6 @@
             'dom/ClientRect.h',
             'dom/ClientRectList.cpp',
             'dom/ClientRectList.h',
-            'dom/Clipboard.cpp',
             'dom/Comment.cpp',
             'dom/Comment.h',
             'dom/ContainerNode.cpp',
@@ -1862,14 +1873,6 @@
             'dom/CrossThreadTask.h',
             'dom/DatasetDOMStringMap.cpp',
             'dom/DatasetDOMStringMap.h',
-            'dom/DataObject.cpp',
-            'dom/DataObject.h',
-            'dom/DataObjectItem.cpp',
-            'dom/DataObjectItem.h',
-            'dom/DataTransferItem.cpp',
-            'dom/DataTransferItem.h',
-            'dom/DataTransferItemList.cpp',
-            'dom/DataTransferItemList.h',
             'dom/DecodedDataDocumentParser.cpp',
             'dom/DecodedDataDocumentParser.h',
             'dom/Document.cpp',
@@ -1980,8 +1983,6 @@
             'dom/NodeList.cpp',
             'dom/NodeRareData.cpp',
             'dom/NodeRareData.h',
-            'dom/Pasteboard.cpp',
-            'dom/Pasteboard.h',
             'dom/RenderTreeBuilder.cpp',
             'dom/RenderTreeBuilder.h',
             'dom/NodeRenderingTraversal.cpp',