linux_aura: Implement file drag and drop in content area.

ui/base/x/selection_utils.h

 // Copyright (c) 2013 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.
 
 #ifndef UI_BASE_X_SELECTION_UTILS_H_
 #define UI_BASE_X_SELECTION_UTILS_H_
 
 #include <X11/Xlib.h>
 
 // Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
@@ skipping 16 matching lines @@
 extern const char kText[];
 extern const char kUtf8String[];
 
 // Returns a list of all text atoms that we handle.
 UI_BASE_EXPORT std::vector< ::Atom> GetTextAtomsFrom(
     const X11AtomCache* atom_cache);
 
 UI_BASE_EXPORT std::vector< ::Atom> GetURLAtomsFrom(
     const X11AtomCache* atom_cache);
 
+UI_BASE_EXPORT std::vector< ::Atom> GetURIListAtomsFrom(
+    const X11AtomCache* atom_cache);
+
 // Places the intersection of |desired| and |offered| into |output|.
 UI_BASE_EXPORT void GetAtomIntersection(const std::vector< ::Atom>& desired,
-                                   const std::vector< ::Atom>& offered,
-                                   std::vector< ::Atom>* output);
+                                        const std::vector< ::Atom>& offered,
+                                        std::vector< ::Atom>* output);
 
 // Takes the raw bytes of the base::string16 and copies them into |bytes|.
 UI_BASE_EXPORT void AddString16ToVector(const base::string16& str,
-                                   std::vector<unsigned char>* bytes);
+                                        std::vector<unsigned char>* bytes);
+
+// Tokenizes and parses the Selection Data as if it is a URI List.
+UI_BASE_EXPORT std::vector<std::string> ParseURIList(const SelectionData& data);
 
 UI_BASE_EXPORT std::string RefCountedMemoryToString(
     const scoped_refptr<base::RefCountedMemory>& memory);
 
 UI_BASE_EXPORT base::string16 RefCountedMemoryToString16(
     const scoped_refptr<base::RefCountedMemory>& memory);
 
 ///////////////////////////////////////////////////////////////////////////////
 
 // Represents the selection in different data formats. Binary data passed in is
@@ skipping 61 matching lines @@
  private:
   ::Atom type_;
   scoped_refptr<base::RefCountedMemory> memory_;
 
   X11AtomCache atom_cache_;
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_X_SELECTION_UTILS_H_