[PPAPI] Fix a bunch of spelling mistakes

ppapi/cpp/dev/var_array_dev.h

Index: ppapi/cpp/dev/var_array_dev.h
diff --git a/ppapi/cpp/dev/var_array_dev.h b/ppapi/cpp/dev/var_array_dev.h
index e790f97597878c70f2f4ab201d09225da16e63fa..17a3277029a2a95525d88e5b31b1f4da9cfb5901 100644
--- a/ppapi/cpp/dev/var_array_dev.h
+++ b/ppapi/cpp/dev/var_array_dev.h
@@ -19,14 +19,14 @@ class VarArray_Dev : public Var {
   /// Constructs a new array var.
   VarArray_Dev();
 
-  /// Contructs a <code>VarArray_Dev</code> given a var for which is_array() is
+  /// Constructs a <code>VarArray_Dev</code> given a var for which is_array() is
   /// true. This will refer to the same array var, but allow you to access
   /// methods specific to arrays.
   ///
   /// @param[in] var An array var.
   explicit VarArray_Dev(const Var& var);
 
-  /// Contructs a <code>VarArray_Dev</code> given a <code>PP_Var</code> of type
+  /// Constructs a <code>VarArray_Dev</code> given a <code>PP_Var</code> of type
   /// PP_VARTYPE_ARRAY.
   ///
   /// @param[in] var A <code>PP_Var</code> of type PP_VARTYPE_ARRAY.