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

chrome/browser/extensions/extension_prefs_unittest.cc

 // Copyright (c) 2010 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/message_loop.h"
 #include "base/path_service.h"
 #include "base/scoped_temp_dir.h"
 #include "base/stl_util-inl.h"
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
@@ skipping 160 matching lines @@
 
 
 class ExtensionPrefsEscalatePermissions : public ExtensionPrefsTest {
  public:
   virtual void Initialize() {
     extension = prefs_.AddExtension("test");
     prefs()->SetDidExtensionEscalatePermissions(extension.get(), true);
   }
 
   virtual void Verify() {
-    EXPECT_EQ(true, prefs()->DidExtensionEscalatePermissions(extension->id()));
+    EXPECT_TRUE(prefs()->DidExtensionEscalatePermissions(extension->id()));
   }
 
  private:
   scoped_refptr<Extension> extension;
 };
 TEST_F(ExtensionPrefsEscalatePermissions, EscalatePermissions) {}
 
 // Tests the AddGrantedPermissions / GetGrantedPermissions functions.
 class ExtensionPrefsGrantedPermissions : public ExtensionPrefsTest {
  public:
@@ skipping 693 matching lines @@
     EXPECT_CALL(*v1, Die()).Times(1);
     InstallExtControlledPref(ext1_, kPref1, v2);
     prefs_.RecreateExtensionPrefs();
   }
 
   virtual void Verify() {
   }
 };
 TEST_F(ExtensionPrefsSetExtensionControlledPref,
     ExtensionPrefsSetExtensionControlledPref) {}