[PPAPI] Fix a bunch of spelling mistakes

ppapi/cpp/dev/var_array_dev.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 PPAPI_CPP_DEV_VAR_ARRAY_DEV_H_
 #define PPAPI_CPP_DEV_VAR_ARRAY_DEV_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/cpp/var.h"
 
 /// @file
 /// This file defines the API for interacting with array vars.
 
 namespace pp {
 
 class VarArray_Dev : public Var {
  public:
   /// 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.
   explicit VarArray_Dev(const PP_Var& var);
 
   /// Copy constructor.
   VarArray_Dev(const VarArray_Dev& other);
 
   virtual ~VarArray_Dev();
 
@@ skipping 41 matching lines @@
   /// than its current value, undefined vars are appended to increase the array
   /// to the specified length.
   ///
   /// @return A <code>PP_Bool</code> indicating whether the operation succeeds.
   PP_Bool SetLength(uint32_t length);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_VAR_ARRAY_DEV_H_