[NaCl SDK] A bunch of spelling fixes.

native_client_sdk/src/examples/fullscreen_tumbler/transforms.h

 // Copyright (c) 2012 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 EXAMPLES_TUMBLER_TRANSFORMS_H_
 #define EXAMPLES_TUMBLER_TRANSFORMS_H_
 
 #include <GLES2/gl2.h>
 
 // A very simple set of 4x4 matrix routines.  In all these routines, the input
 // matrix is assumed to be a 4x4 of GLfloats.
 
 namespace transform_4x4 {
 
-// Pre-multply |m| with a projection transformation 4x4 matrix from a
+// Pre-multiply |m| with a projection transformation 4x4 matrix from a
 // truncated pyramid viewing frustum.
 void Frustum(GLfloat* m,
              GLfloat left,
              GLfloat right,
              GLfloat bottom,
              GLfloat top,
              GLfloat near_z,
              GLfloat far_z);
 
 // Replace |m| with the 4x4 identity matrix.
@@ skipping 10 matching lines @@
                  GLfloat near_z,
                  GLfloat far_z);
 
 // Pre-multiply |m| with a matrix that represents a translation by |tx|, |ty|,
 // |tz|.
 void Translate(GLfloat* m, GLfloat tx, GLfloat ty, GLfloat tz);
 }  // namespace transform_4x4
 
 #endif  // EXAMPLES_TUMBLER_TRANSFORMS_H_