Move NativeWebKeyboardEvent to the content namespace.

content/public/browser/native_web_keyboard_event.h

Index: content/public/browser/native_web_keyboard_event.h
===================================================================
--- content/public/browser/native_web_keyboard_event.h	(revision 137859)
+++ content/public/browser/native_web_keyboard_event.h	(working copy)
@@ -14,6 +14,8 @@
 #include "ui/base/events.h"
 #include "ui/gfx/native_widget_types.h"
 
+namespace content {
+
 // Owns a platform specific event; used to pass own and pass event through
 // platform independent code.
 struct CONTENT_EXPORT NativeWebKeyboardEvent :
@@ -74,8 +76,6 @@
 #endif
 };
 
-namespace content {
-
 // Returns a bitmak of values from ui/base/events.h.
 CONTENT_EXPORT int GetModifiersFromNativeWebKeyboardEvent(
     const NativeWebKeyboardEvent& event);