Rename chrome/browser/android/datausage to data_usage

chrome/browser/android/data_usage/external_data_use_observer.h

Index: chrome/browser/android/data_usage/external_data_use_observer.h
diff --git a/chrome/browser/android/datausage/external_data_use_observer.h b/chrome/browser/android/data_usage/external_data_use_observer.h
similarity index 98%
rename from chrome/browser/android/datausage/external_data_use_observer.h
rename to chrome/browser/android/data_usage/external_data_use_observer.h
index a7dd88508387cf115d1599f0ed9bdc9c1be69fa5..1db5416a40cdb7b20bd6ed14c9f2933d43ea67cc 100644
--- a/chrome/browser/android/datausage/external_data_use_observer.h
+++ b/chrome/browser/android/data_usage/external_data_use_observer.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_ANDROID_DATAUSAGE_EXTERNAL_DATA_USE_OBSERVER_H_
-#define CHROME_BROWSER_ANDROID_DATAUSAGE_EXTERNAL_DATA_USE_OBSERVER_H_
+#ifndef CHROME_BROWSER_ANDROID_DATA_USAGE_EXTERNAL_DATA_USE_OBSERVER_H_
+#define CHROME_BROWSER_ANDROID_DATA_USAGE_EXTERNAL_DATA_USE_OBSERVER_H_
 
 #include <jni.h>
 #include <stdint.h>
@@ -328,4 +328,4 @@ bool RegisterExternalDataUseObserver(JNIEnv* env);
 
 }  // namespace chrome
 
-#endif  // CHROME_BROWSER_ANDROID_DATAUSAGE_EXTERNAL_DATA_USE_OBSERVER_H_
+#endif  // CHROME_BROWSER_ANDROID_DATA_USAGE_EXTERNAL_DATA_USE_OBSERVER_H_