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

win8/delegate_execute/delegate_execute_util_unittest.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 "win8/delegate_execute/delegate_execute_util.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 29 matching lines @@
   const base::FilePath this_exe(
       base::CommandLine::ForCurrentProcess()->GetProgram());
 
   base::CommandLine cl(base::CommandLine::NO_PROGRAM);
 
   // Empty params and argument contains only the exe.
   cl = delegate_execute::MakeChromeCommandLine(
       this_exe,
       delegate_execute::CommandLineFromParameters(NULL),
       base::string16());
-  EXPECT_EQ(1, cl.argv().size());
+  EXPECT_EQ(1u, cl.argv().size());
   EXPECT_EQ(this_exe.value(), cl.GetProgram().value());
 
   // Empty params with arg contains the arg.
   cl = delegate_execute::MakeChromeCommandLine(
       this_exe, delegate_execute::CommandLineFromParameters(NULL),
       base::string16(kSomeArgument));
-  EXPECT_EQ(2, cl.argv().size());
+  EXPECT_EQ(2u, cl.argv().size());
   EXPECT_EQ(this_exe.value(), cl.GetProgram().value());
-  EXPECT_EQ(1, cl.GetArgs().size());
+  EXPECT_EQ(1u, cl.GetArgs().size());
   EXPECT_EQ(base::string16(kSomeArgument), cl.GetArgs()[0]);
 
   // Params with switchs and args plus arg contains the arg.
   cl = delegate_execute::MakeChromeCommandLine(
       this_exe, delegate_execute::CommandLineFromParameters(
           base::StringPrintf(L"--%ls -- %ls",
                              base::ASCIIToUTF16(kSomeSwitch).c_str(),
                              kOtherArgument).c_str()),
       base::string16(kSomeArgument));
-  EXPECT_EQ(5, cl.argv().size());
+  EXPECT_EQ(5u, cl.argv().size());
   EXPECT_EQ(this_exe.value(), cl.GetProgram().value());
   EXPECT_TRUE(cl.HasSwitch(kSomeSwitch));
   base::CommandLine::StringVector args(cl.GetArgs());
-  EXPECT_EQ(2, args.size());
+  EXPECT_EQ(2u, args.size());
   EXPECT_NE(
       args.end(),
       std::find(args.begin(), args.end(), base::string16(kOtherArgument)));
   EXPECT_NE(args.end(),
             std::find(args.begin(), args.end(), base::string16(kSomeArgument)));
 }
 
 TEST(DelegateExecuteUtil, ParametersFromSwitchTest) {
   EXPECT_EQ(base::string16(), delegate_execute::ParametersFromSwitch(NULL));
   EXPECT_EQ(base::string16(L"--some-switch"),
             delegate_execute::ParametersFromSwitch(kSomeSwitch));
 }