Move content settings extension API to content_settings dir.

chrome/browser/extensions/api/content_settings/content_settings_api.h

Index: chrome/browser/extensions/api/content_settings/content_settings_api.h
diff --git a/chrome/browser/extensions/extension_content_settings_api.h b/chrome/browser/extensions/api/content_settings/content_settings_api.h
similarity index 85%
rename from chrome/browser/extensions/extension_content_settings_api.h
rename to chrome/browser/extensions/api/content_settings/content_settings_api.h
index dbae333ad076fc858a9d3f5e60658c5c649b5745..eeb44aa250299c9ff9a97377c393ed8646a96400 100644
--- a/chrome/browser/extensions/extension_content_settings_api.h
+++ b/chrome/browser/extensions/api/content_settings/content_settings_api.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_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_API_H__
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_API_H__
+#ifndef CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__
+#define CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__
 #pragma once
 
 #include "chrome/browser/extensions/extension_function.h"
@@ -14,6 +14,8 @@ class PluginGroup;
 }
 }
 
+namespace extensions {
+
 class ClearContentSettingsFunction : public SyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION_NAME("contentSettings.clear")
@@ -68,4 +70,6 @@ class GetResourceIdentifiersFunction : public AsyncExtensionFunction {
       const std::vector<webkit::npapi::PluginGroup>* plugin_groups);
 };
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_CONTENT_SETTINGS_API_H__
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_API_H__