clang/win: Let some chromium_code targets build with -Wextra.

sandbox/win/src/policy_low_level_unittest.cc

 // Copyright (c) 2006-2008 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 "sandbox/win/src/policy_engine_params.h"
 #include "sandbox/win/src/policy_engine_processor.h"
 #include "sandbox/win/src/policy_low_level.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #define POLPARAMS_BEGIN(x) sandbox::ParameterSet x[] = {
@@ skipping 374 matching lines @@
 // Testing 3 rules in 3 services. Two of the services resemble File services.
 TEST(PolicyEngineTest, ThreeRulesTest) {
   SetupNtdllImports();
   PolicyRule pr_pipe(FAKE_SUCCESS);
   EXPECT_TRUE(pr_pipe.AddStringMatch(IF, 0, L"\\\\/?/?\\Pipe\\Chrome.*",
                                      CASE_INSENSITIVE));
   EXPECT_TRUE(pr_pipe.AddNumberMatch(IF, 1, OPEN_EXISTING, EQUAL));
   EXPECT_TRUE(pr_pipe.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_NORMAL, EQUAL));
 
   size_t opc1 = pr_pipe.GetOpcodeCount();
-  EXPECT_EQ(3, opc1);
+  EXPECT_EQ(3u, opc1);
 
   PolicyRule pr_dump(ASK_BROKER);
   EXPECT_TRUE(pr_dump.AddStringMatch(IF, 0, L"\\\\/?/?\\*\\Crash Reports\\*",
                                      CASE_INSENSITIVE));
   EXPECT_TRUE(pr_dump.AddNumberMatch(IF, 1, CREATE_ALWAYS, EQUAL));
   EXPECT_TRUE(pr_dump.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_NORMAL, EQUAL));
 
   size_t opc2 = pr_dump.GetOpcodeCount();
-  EXPECT_EQ(4, opc2);
+  EXPECT_EQ(4u, opc2);
 
   PolicyRule pr_winexe(SIGNAL_ALARM);
   EXPECT_TRUE(pr_winexe.AddStringMatch(IF, 0, L"\\\\/?/?\\C:\\Windows\\*.exe",
                                        CASE_INSENSITIVE));
   EXPECT_TRUE(pr_winexe.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_NORMAL, EQUAL));
 
   size_t opc3 = pr_winexe.GetOpcodeCount();
-  EXPECT_EQ(3, opc3);
+  EXPECT_EQ(3u, opc3);
 
   PolicyRule pr_adobe(GIVE_CACHED);
   EXPECT_TRUE(pr_adobe.AddStringMatch(IF, 0, L"c:\\adobe\\ver?.?\\",
                                       CASE_SENSITIVE));
   EXPECT_TRUE(pr_adobe.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_NORMAL, EQUAL));
 
   size_t opc4 = pr_adobe.GetOpcodeCount();
-  EXPECT_EQ(4, opc4);
+  EXPECT_EQ(4u, opc4);
 
   PolicyRule pr_none(GIVE_FIRST);
   EXPECT_TRUE(pr_none.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_READONLY, AND));
   EXPECT_TRUE(pr_none.AddNumberMatch(IF, 2, FILE_ATTRIBUTE_SYSTEM, AND));
 
   size_t opc5 = pr_none.GetOpcodeCount();
-  EXPECT_EQ(2, opc5);
+  EXPECT_EQ(2u, opc5);
 
   PolicyGlobal* policy = MakePolicyMemory();
 
   const uint32 kNtFakeNone       = 4;
   const uint32 kNtFakeCreateFile = 5;
   const uint32 kNtFakeOpenFile   = 6;
 
   LowLevelPolicy policyGen(policy);
   EXPECT_TRUE(policyGen.AddRule(kNtFakeCreateFile, &pr_pipe));
   EXPECT_TRUE(policyGen.AddRule(kNtFakeCreateFile, &pr_dump));
@@ skipping 171 matching lines @@
   name = L"domo.txt";
   result = pol_ev_copy.Evaluate(kShortEval, eval_params, _countof(eval_params));
   EXPECT_EQ(NO_POLICY_MATCH, result);
 
   name = L"hello.bmp";
   result = pol_ev_copy.Evaluate(kShortEval, eval_params, _countof(eval_params));
   EXPECT_EQ(POLICY_MATCH, result);
   EXPECT_EQ(ASK_BROKER, pol_ev_copy.GetAction());
 }
 }  // namespace sandbox