Extends IBusLookupTable to handle IsEqual/CopyFrom.

chromeos/dbus/ibus/ibus_lookup_table.h

Index: chromeos/dbus/ibus/ibus_lookup_table.h
diff --git a/chromeos/dbus/ibus/ibus_lookup_table.h b/chromeos/dbus/ibus/ibus_lookup_table.h
index 6fcc64a6db521360959e372e64b5c2b51522404a..de5d3de595a39fc68afb3254e6741a4ccf70aa8e 100644
--- a/chromeos/dbus/ibus/ibus_lookup_table.h
+++ b/chromeos/dbus/ibus/ibus_lookup_table.h
@@ -82,8 +82,8 @@ void CHROMEOS_EXPORT AppendIBusLookupTable(const IBusLookupTable& table,
 class CHROMEOS_EXPORT IBusLookupTable {
  public:
   enum Orientation {
-    IBUS_LOOKUP_TABLE_ORIENTATION_HORIZONTAL = 0,
-    IBUS_LOOKUP_TABLE_ORIENTATION_VERTICAL = 1,
+    HORIZONTAL = 0,
+    VERTICAL = 1,
   };
 
   // Represents a candidate entry. In dbus communication, each
@@ -102,6 +102,12 @@ class CHROMEOS_EXPORT IBusLookupTable {
   IBusLookupTable();
   virtual ~IBusLookupTable();
 
+  // Returns true if the given |table| is equal to myself.
+  bool IsEqual(const IBusLookupTable& table) const;
+
+  // Copies |table| to myself.
+  void CopyFrom(const IBusLookupTable& table);
+
   // Returns the number of candidates in one page.
   uint32 page_size() const { return page_size_; }
   void set_page_size(uint32 page_size) { page_size_ = page_size; }