Add DEPS include rules so we don't accidentally use base

ppapi/tests/test_flash.cc

Index: ppapi/tests/test_flash.cc
diff --git a/ppapi/tests/test_flash.cc b/ppapi/tests/test_flash.cc
index d7ac95ad8b724e34fc54728aa69902f1bff553e3..2121325322804d381fcda92160d3b132df64e198 100644
--- a/ppapi/tests/test_flash.cc
+++ b/ppapi/tests/test_flash.cc
@@ -4,11 +4,11 @@
 
 #include "ppapi/tests/test_flash.h"
 
-#include "base/compiler_specific.h"
 #include "ppapi/c/private/ppb_flash.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/var.h"
+#include "ppapi/tests/test_utils.h"
 #include "ppapi/tests/testing_instance.h"
 
 REGISTER_TEST_CASE(Flash);
@@ -17,7 +17,7 @@ using pp::Var;
 
 TestFlash::TestFlash(TestingInstance* instance)
     : TestCase(instance),
-      ALLOW_THIS_IN_INITIALIZER_LIST(callback_factory_(this)) {
+      PP_ALLOW_THIS_IN_INITIALIZER_LIST(callback_factory_(this)) {
 }
 
 bool TestFlash::Init() {