Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/indexed_db/proxy_webidbfactory_impl.cc

Index: content/common/indexed_db/proxy_webidbfactory_impl.cc
===================================================================
--- content/common/indexed_db/proxy_webidbfactory_impl.cc	(revision 163290)
+++ content/common/indexed_db/proxy_webidbfactory_impl.cc	(working copy)
@@ -17,6 +17,8 @@
 using WebKit::WebSecurityOrigin;
 using WebKit::WebString;
 
+namespace content {
+
 RendererWebIDBFactoryImpl::RendererWebIDBFactoryImpl() {
 }
 
@@ -64,3 +66,5 @@
   dispatcher->RequestIDBFactoryDeleteDatabase(
       name, callbacks, origin.databaseIdentifier(), web_frame);
 }
+
+}  // namespace content