linux_aura: Implement dropping in chrome.

ui/base/x/selection_utils.h

Index: ui/base/x/selection_utils.h
diff --git a/ui/base/x/selection_utils.h b/ui/base/x/selection_utils.h
index eba259b37ddc48e5caf375490a4565d9a97f01aa..741fd819f9bc84f9bbb874a1570cddba871df6d9 100644
--- a/ui/base/x/selection_utils.h
+++ b/ui/base/x/selection_utils.h
@@ -15,13 +15,26 @@
 #include "base/basictypes.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/ui_export.h"
+#include "ui/base/x/x11_atom_cache.h"
 
 namespace ui {
 class X11AtomCache;
 
+extern const char kMimeTypeMozillaURL[];
+extern const char kString[];
+extern const char kText[];
+extern const char kUtf8String[];
+
 // Returns a list of all text atoms that we handle.
 UI_EXPORT std::vector< ::Atom> GetTextAtomsFrom(const X11AtomCache* atom_cache);
 
+UI_EXPORT std::vector< ::Atom> GetURLAtomsFrom(const X11AtomCache* atom_cache);
+
+// Places the intersection of |one| and |two| into |output|.
+UI_EXPORT void GetAtomIntersection(const std::vector< ::Atom>& one,
+                                   const std::vector< ::Atom>& two,
+                                   std::vector< ::Atom>* output);
+
 ///////////////////////////////////////////////////////////////////////////////
 
 // Represents the selection in different data formats. Binary data passed in is
@@ -52,6 +65,43 @@ class UI_EXPORT SelectionFormatMap {
   DISALLOW_COPY_AND_ASSIGN(SelectionFormatMap);
 };
 
+///////////////////////////////////////////////////////////////////////////////
+
+// A holder for data with optional X11 deletion semantics.
+class UI_EXPORT SelectionData {
+ public:
+  // |atom_cache| is still owned by caller.
+  explicit SelectionData(Display* x_display);
+  ~SelectionData();
+
+  ::Atom type() const { return type_; }
+  char* data() const { return data_; }
+  size_t size() const { return size_; }
+
+  void Set(::Atom type, char* data, size_t size, bool owned);
+
+  // If |type_| is a string type, convert the data to UTF8 and return it.
+  std::string GetText() const;
+
+  // If |type_| is the HTML type, returns the data as a string16. This detects
+  // guesses the character encoding of the source.
+  string16 GetHtml() const;
+
+  // Assigns the raw data to the string.
+  void AssignTo(std::string* result) const;
+  void AssignTo(string16* result) const;
+
+ private:
+  ::Atom type_;
+  char* data_;
+  size_t size_;
+  bool owned_;
+
+  X11AtomCache atom_cache_;
+
+  DISALLOW_COPY_AND_ASSIGN(SelectionData);
+};
+
 }  // namespace ui
 
 #endif  // UI_BASE_X_SELECTION_UTILS_H_