content: Split web_drag_dest_gtk.cc into chrome/ and content/ parts.

content/browser/tab_contents/drag_utils_gtk.cc

Index: content/browser/tab_contents/drag_utils_gtk.cc
diff --git a/content/browser/tab_contents/drag_utils_gtk.cc b/content/browser/tab_contents/drag_utils_gtk.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b1761b198fb70aa39f15b9fbc0cbeb1cf2e9572c
--- /dev/null
+++ b/content/browser/tab_contents/drag_utils_gtk.cc
@@ -0,0 +1,38 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/tab_contents/drag_utils_gtk.h"
+
+using WebKit::WebDragOperationsMask;
+using WebKit::WebDragOperation;
+using WebKit::WebDragOperationNone;
+using WebKit::WebDragOperationCopy;
+using WebKit::WebDragOperationLink;
+using WebKit::WebDragOperationMove;
+
+namespace content {
+
+GdkDragAction WebDragOpToGdkDragAction(WebDragOperationsMask op) {
+  GdkDragAction action = static_cast<GdkDragAction>(0);
+  if (op & WebDragOperationCopy)
+    action = static_cast<GdkDragAction>(action | GDK_ACTION_COPY);
+  if (op & WebDragOperationLink)
+    action = static_cast<GdkDragAction>(action | GDK_ACTION_LINK);
+  if (op & WebDragOperationMove)
+    action = static_cast<GdkDragAction>(action | GDK_ACTION_MOVE);
+  return action;
+}
+
+WebDragOperationsMask GdkDragActionToWebDragOp(GdkDragAction action) {
+  WebDragOperationsMask op = WebDragOperationNone;
+  if (action & GDK_ACTION_COPY)
+    op = static_cast<WebDragOperationsMask>(op | WebDragOperationCopy);
+  if (action & GDK_ACTION_LINK)
+    op = static_cast<WebDragOperationsMask>(op | WebDragOperationLink);
+  if (action & GDK_ACTION_MOVE)
+    op = static_cast<WebDragOperationsMask>(op | WebDragOperationMove);
+  return op;
+}
+
+}  // namespace content