https://bugs.webkit.org/show_bug.cgi?id=122427

Patch by Sam Weinig <sam@webkit.org> on 2013-10-07
Reviewed by Andreas Kling.

Source/WebCore:

Use references to indicate non-nullness of DragController related
objects.

Source/WebKit/efl:

* WebCoreSupport/DragClientEfl.cpp:
(WebCore::DragClientEfl::willPerformDragDestinationAction):
(WebCore::DragClientEfl::willPerformDragSourceAction):
(WebCore::DragClientEfl::actionMaskForDrag):
(WebCore::DragClientEfl::startDrag):
* WebCoreSupport/DragClientEfl.h:

Source/WebKit/gtk:

* WebCoreSupport/DragClientGtk.cpp:
(WebKit::DragClient::willPerformDragDestinationAction):
(WebKit::DragClient::willPerformDragSourceAction):
(WebKit::DragClient::actionMaskForDrag):
(WebKit::DragClient::startDrag):
* WebCoreSupport/DragClientGtk.h:
* webkit/webkitwebview.cpp:
(dragExitedCallback):
(webkit_web_view_drag_motion):
(webkit_web_view_drag_data_received):
(webkit_web_view_drag_drop):

Source/WebKit/mac:

* WebCoreSupport/WebDragClient.h:
* WebCoreSupport/WebDragClient.mm:
(WebDragClient::actionMaskForDrag):
(WebDragClient::willPerformDragDestinationAction):
(WebDragClient::willPerformDragSourceAction):
(WebDragClient::startDrag):
(WebDragClient::declareAndWriteDragImage):
* WebView/WebFrame.mm:
(-[WebFrame _replaceSelectionWithText:selectReplacement:smartReplace:]):
* WebView/WebHTMLView.mm:
(-[WebHTMLView _documentFragmentFromPasteboard:forType:inContext:subresources:]):
* WebView/WebView.mm:
(-[WebView draggingEntered:]):
(-[WebView draggingUpdated:]):
(-[WebView draggingExited:]):
(-[WebView performDragOperation:]):

Source/WebKit/win:

* WebCoreSupport/WebDragClient.cpp:
(WebDragClient::actionMaskForDrag):
(WebDragClient::willPerformDragDestinationAction):
(WebDragClient::willPerformDragSourceAction):
(WebDragClient::startDrag):
* WebCoreSupport/WebDragClient.h:

Source/WebKit2:

* UIProcess/API/gtk/WebKitWebViewBase.cpp:
(webkitWebViewBaseDragDataReceived):
(webkitWebViewBaseDragMotion):
(dragExitedCallback):
(webkitWebViewBaseDragDrop):
* UIProcess/API/mac/WKView.mm:
(-[WKView draggingEntered:]):
(-[WKView draggingUpdated:]):
(-[WKView draggingExited:]):
(-[WKView performDragOperation:]):
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::dragEntered):
(WebKit::WebPageProxy::dragUpdated):
(WebKit::WebPageProxy::dragExited):
(WebKit::WebPageProxy::performDrag):
(WebKit::WebPageProxy::performDragControllerAction):
* UIProcess/WebPageProxy.h:
* WebProcess/WebCoreSupport/WebDragClient.cpp:
(WebKit::WebDragClient::willPerformDragDestinationAction):
(WebKit::WebDragClient::willPerformDragSourceAction):
(WebKit::WebDragClient::actionMaskForDrag):
(WebKit::WebDragClient::dragSourceActionMaskForPoint):
(WebKit::WebDragClient::startDrag):
* WebProcess/WebCoreSupport/WebDragClient.h:
* WebProcess/WebCoreSupport/gtk/WebDragClientGtk.cpp:
(WebKit::WebDragClient::startDrag):
* WebProcess/WebCoreSupport/mac/WebDragClientMac.mm:
(WebKit::WebDragClient::startDrag):
(WebKit::cachedImage):
(WebKit::WebDragClient::declareAndWriteDragImage):
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::performDragControllerAction):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157058 268f45cc-cd09-0410-ab3c-d52691b4dbfc