Componentize proxy code from chrome/browser/net

components/proxy_config/pref_proxy_config_tracker.h

Index: components/proxy_config/pref_proxy_config_tracker.h
diff --git a/chrome/browser/net/pref_proxy_config_tracker.h b/components/proxy_config/pref_proxy_config_tracker.h
similarity index 89%
rename from chrome/browser/net/pref_proxy_config_tracker.h
rename to components/proxy_config/pref_proxy_config_tracker.h
index 7ce43e041d02acf3865a67b1b6ce9e4ca6473c82..db6d394c317be64ce063362db64b35973359648f 100644
--- a/chrome/browser/net/pref_proxy_config_tracker.h
+++ b/components/proxy_config/pref_proxy_config_tracker.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_
-#define CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_
+#ifndef COMPONENTS_PROXY_CONFIG_PREF_PROXY_CONFIG_TRACKER_H_
+#define COMPONENTS_PROXY_CONFIG_PREF_PROXY_CONFIG_TRACKER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
@@ -40,4 +40,4 @@ class PrefProxyConfigTracker {
   DISALLOW_COPY_AND_ASSIGN(PrefProxyConfigTracker);
 };
 
-#endif  // CHROME_BROWSER_NET_PREF_PROXY_CONFIG_TRACKER_H_
+#endif  // COMPONENTS_PROXY_CONFIG_PREF_PROXY_CONFIG_TRACKER_H_