[WebView] Remove more redundant classes

android_webview/browser/aw_web_preferences_populater.h

Index: android_webview/browser/aw_web_preferences_populater.h
diff --git a/android_webview/browser/aw_web_preferences_populater.h b/android_webview/browser/aw_web_preferences_populater.h
deleted file mode 100644
index 6fbd76ba9e0dc90bee97265318b1350173613de0..0000000000000000000000000000000000000000
--- a/android_webview/browser/aw_web_preferences_populater.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2013 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 ANDROID_WEBVIEW_BROWSER_AW_WEB_PREFERENCES_POPULATER_H_
-#define ANDROID_WEBVIEW_BROWSER_AW_WEB_PREFERENCES_POPULATER_H_
-
-namespace content {
-class WebContents;
-struct WebPreferences;
-}
-
-namespace android_webview {
-
-// Empty base class so this can be destroyed by AwContentBrowserClient.
-class AwWebPreferencesPopulater {
- public:
-  virtual ~AwWebPreferencesPopulater();
-
-  virtual void PopulateFor(content::WebContents* web_contents,
-                           content::WebPreferences* web_prefs) = 0;
-};
-
-}  // namespace android_webview
-
-#endif  // ANDROID_WEBVIEW_BROWSER_AW_WEB_PREFERENCES_POPULATER_H_