Fix PPB_MouseLock.LockMouse crash and add tests.

chrome/browser/nacl_host/test/nacl_gdb_browsertest.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 "base/command_line.h"
 #include "base/environment.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/win/windows_version.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/test/ui/ppapi_uitest.h"
+#include "chrome/test/ppapi/ppapi_test.h"
 
 static const FilePath::CharType kMockNaClGdb[] =
 #if defined(OS_WIN)
     FILE_PATH_LITERAL("mock_nacl_gdb.exe");
 #else
     FILE_PATH_LITERAL("mock_nacl_gdb");
 #endif
 
 class NaClGdbTest : public PPAPINaClNewlibTest {
  public:
@@ skipping 48 matching lines @@
 
 // Fails on the ASAN test bot. See http://crbug.com/122219
 #if defined(ADDRESS_SANITIZER)
 #define MAYBE_Empty DISABLED_Empty
 #else
 #define MAYBE_Empty Empty
 #endif
 IN_PROC_BROWSER_TEST_F(NaClGdbTest, MAYBE_Empty) {
   RunWithNaClGdb("Empty");
 }