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

content/browser/accessibility/browser_accessibility_win_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 "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_bstr.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_variant.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
@@ skipping 466 matching lines @@
 
   // Delete the manager and test that all BrowserAccessibility instances are
   // deleted.
   manager.reset();
   ASSERT_EQ(0, CountedBrowserAccessibility::num_instances());
 }
 
 TEST_F(BrowserAccessibilityTest, TestSimpleHypertext) {
   const std::string text1_name = "One two three.";
   const std::string text2_name = " Four five six.";
-  const size_t text_name_len = text1_name.length() + text2_name.length();
+  const long text_name_len = text1_name.length() + text2_name.length();
 
   ui::AXNodeData text1;
   text1.id = 11;
   text1.role = ui::AX_ROLE_STATIC_TEXT;
   text1.state = 1 << ui::AX_STATE_READ_ONLY;
   text1.SetName(text1_name);
 
   ui::AXNodeData text2;
   text2.id = 12;
   text2.role = ui::AX_ROLE_STATIC_TEXT;
@@ skipping 62 matching lines @@
   const base::string16 text2_name = L" Four five six.";
   const base::string16 check_box_name = L"I agree";
   const base::string16 check_box_value = L"Checked";
   const base::string16 button_text_name = L"Red";
   const base::string16 link_text_name = L"Blue";
   // Each control (combo / check box, button and link) will be represented by an
   // embedded object character.
   const base::string16 embed(1, BrowserAccessibilityWin::kEmbeddedCharacter);
   const base::string16 root_hypertext =
       text1_name + embed + text2_name + embed + embed + embed;
-  const size_t root_hypertext_len = root_hypertext.length();
+  const long root_hypertext_len = root_hypertext.length();
 
   ui::AXNodeData text1;
   text1.id = 11;
   text1.role = ui::AX_ROLE_STATIC_TEXT;
   text1.state = 1 << ui::AX_STATE_READ_ONLY;
   text1.SetName(base::UTF16ToUTF8(text1_name));
 
   ui::AXNodeData combo_box;
   combo_box.id = 12;
   combo_box.role = ui::AX_ROLE_COMBO_BOX;
@@ skipping 894 matching lines @@
 }
 
 TEST_F(BrowserAccessibilityTest, TestSanitizeStringAttributeForIA2) {
   base::string16 input(L"\\:=,;");
   base::string16 output;
   BrowserAccessibilityWin::SanitizeStringAttributeForIA2(input, &output);
   EXPECT_EQ(L"\\\\\\:\\=\\,\\;", output);
 }
 
 }  // namespace content