Add missing (and remove superfluous) 'explicit' from constructors.

base/i18n/char_iterator.h

 // Copyright (c) 2011 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 BASE_I18N_CHAR_ITERATOR_H_
 #define BASE_I18N_CHAR_ITERATOR_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
 #if defined(OS_WIN)
 typedef unsigned char uint8_t;
 #endif
 
 namespace base {
 namespace i18n {
 
 class BASE_I18N_EXPORT UTF8CharIterator {
  public:
   // Requires |str| to live as long as the UTF8CharIterator does.
-  UTF8CharIterator(const std::string* str);
+  explicit UTF8CharIterator(const std::string* str);
   ~UTF8CharIterator();
 
   // Return the starting array index of the current character within the
   // string.
   int32 array_pos() const { return array_pos_; }
 
   // Return the logical index of the current character, independent of the
   // number of bytes each character takes.
   int32 char_pos() const { return char_pos_; }
 
@@ skipping 25 matching lines @@
 
   // The current character.
   int32 char_;
 
   DISALLOW_COPY_AND_ASSIGN(UTF8CharIterator);
 };
 
 class BASE_I18N_EXPORT UTF16CharIterator {
  public:
   // Requires |str| to live as long as the UTF16CharIterator does.
-  UTF16CharIterator(const string16* str);
+  explicit UTF16CharIterator(const string16* str);
   UTF16CharIterator(const char16* str, size_t str_len);
   ~UTF16CharIterator();
 
   // Return the starting array index of the current character within the
   // string.
   int32 array_pos() const { return array_pos_; }
 
   // Return the logical index of the current character, independent of the
   // number of codewords each character takes.
   int32 char_pos() const { return char_pos_; }
@@ skipping 31 matching lines @@
   // The current character.
   int32 char_;
 
   DISALLOW_COPY_AND_ASSIGN(UTF16CharIterator);
 };
 
 }  // namespace i18n
 }  // namespace base
 
 #endif  // BASE_I18N_CHAR_ITERATOR_H_