Fix some minor typos: psuedo -> pseudo

components/rappor/byte_vector_utils.h

 // Copyright 2014 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 COMPONENTS_RAPPOR_BYTE_VECTOR_UTILS_H_
 #define COMPONENTS_RAPPOR_BYTE_VECTOR_UTILS_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 44 matching lines @@
 
   // Generates a random vector of bytes from a uniform distribution.
   virtual ByteVector GetRandomByteVector();
 
  private:
   size_t byte_count_;
 
   DISALLOW_COPY_AND_ASSIGN(ByteVectorGenerator);
 };
 
-// A ByteVectorGenerator that uses a psuedo-random function to generate a
+// A ByteVectorGenerator that uses a pseudo-random function to generate a
 // deterministically random bits.  This class only implements a single request
 // from HMAC_DRBG and streams up to 2^19 bits from that request.
 // Ref: http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf
 // We're using our own PRNG instead of crypto::RandBytes because we need to
 // generate a repeatable sequence of bits from the same seed. Conservatively,
 // we're choosing to use HMAC_DRBG here, as it is one of the best studied
 // and standardized ways of generating deterministic, unpredictable sequences
 // based on a secret seed.
 class HmacByteVectorGenerator : public ByteVectorGenerator {
  public:
@@ skipping 30 matching lines @@
 
   // Total number of bytes streamed from the HMAC_DRBG Generate Process.
   size_t generated_bytes_;
 
   DISALLOW_ASSIGN(HmacByteVectorGenerator);
 };
 
 }  // namespace rappor
 
 #endif  // COMPONENTS_RAPPOR_BYTE_VECTOR_UTILS_H_