Fix that switch "--disk-cache-dir" has no effect when specifying a path containing non-ascii charac…

chrome/browser/prefs/command_line_pref_store.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_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_
 #define CHROME_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/prefs/value_map_pref_store.h"
@@ skipping 13 matching lines @@
   bool ValidateProxySwitches();
 
  private:
   friend class TestCommandLinePrefStore;
 
   struct StringSwitchToPreferenceMapEntry {
     const char* switch_name;
     const char* preference_path;
   };
 
+  struct PathSwitchToPreferenceMapEntry {
+    const char* switch_name;
+    const char* preference_path;
+  };
+
   struct IntegerSwitchToPreferenceMapEntry {
     const char* switch_name;
     const char* preference_path;
   };
 
   // |set_value| indicates what the preference should be set to if the switch
   // is present.
   struct BooleanSwitchToPreferenceMapEntry {
     const char* switch_name;
     const char* preference_path;
@@ skipping 12 matching lines @@
 
   // Determines whether the background mode is force-disabled.
   void ApplyBackgroundModeSwitches();
 
   // Weak reference.
   const base::CommandLine* command_line_;
 
   // Mappings of command line switches to prefs.
   static const BooleanSwitchToPreferenceMapEntry boolean_switch_map_[];
   static const StringSwitchToPreferenceMapEntry string_switch_map_[];
+  static const PathSwitchToPreferenceMapEntry path_switch_map_[];
   static const IntegerSwitchToPreferenceMapEntry integer_switch_map_[];
 
   DISALLOW_COPY_AND_ASSIGN(CommandLinePrefStore);
 };
 
 #endif  // CHROME_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_