Move RendererPreferences to content/public/common and also put in the content namespace.

content/public/common/renderer_preferences.cc

Index: content/public/common/renderer_preferences.cc
===================================================================
--- content/public/common/renderer_preferences.cc	(revision 108004)
+++ content/public/common/renderer_preferences.cc	(working copy)
@@ -2,8 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/common/renderer_preferences.h"
+#include "content/public/common/renderer_preferences.h"
 
+namespace content {
+
 RendererPreferences::RendererPreferences()
     : can_accept_load_drops(true),
       should_antialias_text(true),
@@ -22,3 +24,5 @@
       caret_blink_interval(0),
       enable_referrers(true) {
 }
+
+}  // namespace content