Add missing content namespace to the android library loader.

content/browser/android/library_loader_hooks.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/android_library_loader_hooks.h"
 
 #include "base/android/base_jni_registrar.h"
 #include "base/android/jni_registrar.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 54 matching lines @@
 
   if (!content::android::RegisterJni(env))
     return JNI_FALSE;
 
   if (!media::RegisterJni(env))
     return JNI_FALSE;
 
   return JNI_TRUE;
 }
 
+namespace content {
+
 void LibraryLoaderExitHook() {
   if (g_at_exit_manager) {
     delete g_at_exit_manager;
     g_at_exit_manager = NULL;
   }
 }
 
 bool RegisterLibraryLoaderEntryHook(JNIEnv* env) {
   // TODO(bulach): use the jni generator once we move jni_helper methods here.
   const JNINativeMethod kMethods[] = {
       { "nativeLibraryLoadedOnMainThread", "([Ljava/lang/String;)Z",
           reinterpret_cast<void*>(LibraryLoaderEntryHook) },
   };
   const int kMethodsSize = arraysize(kMethods);
   const char kLibraryLoaderPath[] =
     "org/chromium/content/browser/LibraryLoader";
   base::android::ScopedJavaLocalRef<jclass> clazz =
       base::android::GetClass(env, kLibraryLoaderPath);
 
   if (env->RegisterNatives(clazz.obj(),
                            kMethods,
                            kMethodsSize) < 0) {
     return false;
   }
   return true;
 }
+
+}  // namespace content