Add FilePath to base namespace.

chrome/common/logging_chrome.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 CHROME_COMMON_LOGGING_CHROME_H__
 #define CHROME_COMMON_LOGGING_CHROME_H__
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/time.h"
 
 class CommandLine;
+
+namespace base {
 class FilePath;
+}
 
 namespace logging {
 
 // Call to initialize logging for Chrome. This sets up the chrome-specific
 // logfile naming scheme and might do other things like log modules and
 // setting levels in the future.
 //
 // The main process might want to delete any old log files on startup by
 // setting delete_old_log_file, but the renderer processes should not, or
 // they will delete each others' logs.
 //
 // XXX
 // Setting suppress_error_dialogs to true disables any dialogs that would
 // normally appear for assertions and crashes, and makes any catchable
 // errors (namely assertions) available via GetSilencedErrorCount()
 // and GetSilencedError().
 void InitChromeLogging(const CommandLine& command_line,
                        OldFileDeletionState delete_old_log_file);
 
 #if defined(OS_CHROMEOS)
 // Get the log file location.
-FilePath GetSessionLogFile(const CommandLine& command_line);
+base::FilePath GetSessionLogFile(const CommandLine& command_line);
 
 // Redirects chrome logging to the appropriate session log dir.
 void RedirectChromeLogging(const CommandLine& command_line);
 #endif
 
 // Call when done using logging for Chrome.
 void CleanupChromeLogging();
 
 // Returns the fully-qualified name of the log file.
-FilePath GetLogFileName();
+base::FilePath GetLogFileName();
 
 // Returns true when error/assertion dialogs are to be shown,
 // false otherwise.
 bool DialogsAreSuppressed();
 
 typedef std::vector<std::wstring> AssertionList;
 
 // Gets the list of fatal assertions in the current log file, and
 // returns the number of fatal assertions.  (If you don't care
 // about the actual list of assertions, you can pass in NULL.)
 // NOTE: Since this reads the log file to determine the assertions,
 // this operation is O(n) over the length of the log.
 // NOTE: This can fail if the file is locked for writing.  However,
 // this is unlikely as this function is most useful after
 // the program writing the log has terminated.
 size_t GetFatalAssertions(AssertionList* assertions);
 
 // Inserts timestamp before file extension in the format
 // "_yymmdd-hhmmss".
-FilePath GenerateTimestampedName(const FilePath& base_path,
-                                 base::Time timestamp);
+base::FilePath GenerateTimestampedName(const base::FilePath& base_path,
+                                       base::Time timestamp);
 }  // namespace logging
 
 #endif  // CHROME_COMMON_LOGGING_CHROME_H_