Put the Pepper stuff in the content namespace.

content/renderer/pepper/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper/pepper_plugin_delegate_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_delegate_impl.cc b/content/renderer/pepper/pepper_plugin_delegate_impl.cc
index feab360d1befa158572ef56c846eb1621294a23a..9a2d81eef9f386a6ff01ae7165097eb9516f5e1c 100644
--- a/content/renderer/pepper/pepper_plugin_delegate_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_delegate_impl.cc
@@ -91,6 +91,8 @@
 using WebKit::WebView;
 using WebKit::WebFrame;
 
+namespace content {
+
 namespace {
 
 class HostDispatcherWrapper
@@ -1605,3 +1607,5 @@ webkit_glue::ClipboardClient*
     PepperPluginDelegateImpl::CreateClipboardClient() const {
   return new RendererClipboardClient;
 }
+
+}  // namespace content