Convert the pp::proxy namespace to the ppapi::proxy namespace.

ppapi/proxy/ppb_flash_tcp_socket_proxy.h

Index: ppapi/proxy/ppb_flash_tcp_socket_proxy.h
diff --git a/ppapi/proxy/ppb_flash_tcp_socket_proxy.h b/ppapi/proxy/ppb_flash_tcp_socket_proxy.h
index aac9bbdc9525859d8fb93fbac6a0b40193c7a397..c32f9207d0704fecef86cc0b41b9b9da207c2f3f 100644
--- a/ppapi/proxy/ppb_flash_tcp_socket_proxy.h
+++ b/ppapi/proxy/ppb_flash_tcp_socket_proxy.h
@@ -13,7 +13,7 @@
 #include "ppapi/c/private/ppb_flash_tcp_socket.h"
 #include "ppapi/proxy/interface_proxy.h"
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 // The maximum number of bytes that each PpapiHostMsg_PPBFlashTCPSocket_Read
@@ -56,6 +56,6 @@ class PPB_Flash_TCPSocket_Proxy : public InterfaceProxy {
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_FLASH_TCP_SOCKET_PROXY_H_