content/browser: Move more files into the content namespace.

content/browser/child_process_security_policy_impl.h

Index: content/browser/child_process_security_policy_impl.h
diff --git a/content/browser/child_process_security_policy_impl.h b/content/browser/child_process_security_policy_impl.h
index b6898c496be6f22ae23d5b05cf4b72ac6a18b7f0..d4b7287cbe0fb07dcd0823095a8e6b9372b8b829 100644
--- a/content/browser/child_process_security_policy_impl.h
+++ b/content/browser/child_process_security_policy_impl.h
@@ -5,7 +5,6 @@
 #ifndef CONTENT_BROWSER_CHILD_PROCESS_SECURITY_POLICY_IMPL_H_
 #define CONTENT_BROWSER_CHILD_PROCESS_SECURITY_POLICY_IMPL_H_
 
-
 #include <map>
 #include <set>
 #include <string>
@@ -19,8 +18,10 @@
 class FilePath;
 class GURL;
 
+namespace content {
+
 class CONTENT_EXPORT ChildProcessSecurityPolicyImpl
-    : NON_EXPORTED_BASE(public content::ChildProcessSecurityPolicy) {
+    : NON_EXPORTED_BASE(public ChildProcessSecurityPolicy) {
  public:
   // Object can only be created through GetInstance() so the constructor is
   // private.
@@ -207,4 +208,6 @@ class CONTENT_EXPORT ChildProcessSecurityPolicyImpl
   DISALLOW_COPY_AND_ASSIGN(ChildProcessSecurityPolicyImpl);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_BROWSER_CHILD_PROCESS_SECURITY_POLICY_IMPL_H_