Cosmetic changes to netd client files.

+ Name the dispatch header correctly (NetdClientDispatch.h).
+ Hide the global dispatch variable (__netdClientDispatch).
+ Explain why it's okay to read the variable without locking.
+ Use quotes instead of angle-brackets for non-system includes.
+ Add necessary declarations for C compiles (and not just C++).

Change-Id: Id0932165e71d81da5fce77a684f40c2263f58e61

libc/bionic/NetdClientDispatch.cpp

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include <private/NetdClient.h>
+#include "private/NetdClientDispatch.h"
 
 #ifdef __i386__
 #define __socketcall __attribute__((__cdecl__))
@@ -25,7 +25,9 @@
 extern "C" __socketcall int __accept(int, sockaddr*, socklen_t*);
 extern "C" __socketcall int __connect(int, const sockaddr*, socklen_t);
 
-NetdClientDispatch __netdClientDispatch __attribute__((aligned(32))) = {
+// This structure is modified only at startup (when libc.so is loaded) and never
+// afterwards, so it's okay that it's read later at runtime without a lock.
+__LIBC_HIDDEN__ NetdClientDispatch __netdClientDispatch __attribute__((aligned(32))) = {
     __accept,
     __connect,
 };