Add PPB_VarDictionary_Dev support - part 1.

ppapi/cpp/var.h

Index: ppapi/cpp/var.h
diff --git a/ppapi/cpp/var.h b/ppapi/cpp/var.h
index 437eed95f9c35d48e4b12f4b950e1387f0a90511..36a0b7291547280604769b7e7675999d30b1ccf6 100644
--- a/ppapi/cpp/var.h
+++ b/ppapi/cpp/var.h
@@ -119,9 +119,19 @@ class Var {
 
   /// This function determines if this <code>Var</code> is an object.
   ///
-  /// @return true if this  <code>Var</code> is an object, otherwise false.
+  /// @return true if this <code>Var</code> is an object, otherwise false.
   bool is_object() const { return var_.type == PP_VARTYPE_OBJECT; }
 
+  /// This function determines if this <code>Var</code> is an array.
+  ///
+  /// @return true if this <code>Var</code> is an array, otherwise false.
+  bool is_array() const { return var_.type == PP_VARTYPE_ARRAY; }
+
+  /// This function determines if this <code>Var</code> is a dictionary.
+  ///
+  /// @return true if this <code>Var</code> is a dictinoary, otherwise false.
+  bool is_dictionary() const { return var_.type == PP_VARTYPE_DICTIONARY; }
+
   /// This function determines if this <code>Var</code> is an integer value.
   /// The <code>is_int</code> function returns the internal representation.
   /// The JavaScript runtime may convert between the two as needed, so the