Clang: enable -Wbool-conversions and -Wunused-variables on Linux.

chrome/browser/password_manager/password_store_mac_unittest.cc

 // Copyright (c) 2009 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 "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 834 matching lines @@
   for (unsigned int i = 0; i < ARRAYSIZE_UNSAFE(db_data); ++i) {
     database_forms.push_back(CreatePasswordFormFromData(db_data[i]));
   }
   std::vector<PasswordForm*> merged_forms =
       internal_keychain_helpers::GetPasswordsForForms(*keychain_,
                                                       &database_forms);
   EXPECT_EQ(2U, database_forms.size());
   ASSERT_EQ(3U, merged_forms.size());
   EXPECT_EQ(ASCIIToUTF16("sekrit"), merged_forms[0]->password_value);
   EXPECT_EQ(ASCIIToUTF16("sekrit"), merged_forms[1]->password_value);
-  EXPECT_EQ(true, merged_forms[2]->blacklisted_by_user);
+  EXPECT_TRUE(merged_forms[2]->blacklisted_by_user);
 
   STLDeleteElements(&database_forms);
   STLDeleteElements(&merged_forms);
 }
 
 TEST_F(PasswordStoreMacInternalsTest, TestPasswordGetAll) {
   MacKeychainPasswordFormAdapter keychain_adapter(keychain_);
   MacKeychainPasswordFormAdapter owned_keychain_adapter(keychain_);
   owned_keychain_adapter.SetFindsOnlyOwnedItems(true);
 
@@ skipping 149 matching lines @@
       EXPECT_EQ(0U, matching_items.size()) << "iteration " << i;
     }
     STLDeleteElements(&matching_items);
 
     login_db_->GetLogins(*query_form, &matching_items);
     EXPECT_EQ(updates[i].password ? 1U : 0U, matching_items.size())
         << "iteration " << i;
     STLDeleteElements(&matching_items);
   }
 }