Fix win build errors. Don't initialize FilePath with const char*.

chrome/browser/device_orientation/enable_switch_browsertest.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/command_line.h"
 #include "base/file_path.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/in_process_browser_test.h"
 #include "chrome/test/ui_test_utils.h"
 
 class DeviceOrientationEnableSwitchTest : public InProcessBrowserTest {
  public:
-  GURL testUrl(const char* filename) {
-    const FilePath kTestDir("device_orientation");
+  GURL testUrl(const FilePath::CharType* filename) {
+    const FilePath kTestDir(FILE_PATH_LITERAL("device_orientation"));
     return ui_test_utils::GetTestUrl(kTestDir, FilePath(filename));
   }
 };
 
 IN_PROC_BROWSER_TEST_F(DeviceOrientationEnableSwitchTest, UnavailabilityTest) {
   // Test that device orientation is not available to a web page if
   // the runtime switch is disabled.
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   bool has_switch = command_line.HasSwitch(switches::kEnableDeviceOrientation);
   ASSERT_FALSE(has_switch) << "This test does not make sense if "
                            << "--enable-device-orientation is set.";
 
-  GURL test_url = testUrl("enable_switch_test.html");
+  GURL test_url = testUrl(FILE_PATH_LITERAL("enable_switch_test.html"));
   ui_test_utils::NavigateToURL(browser(), test_url);
   std::string status = browser()->GetSelectedTabContents()->GetURL().ref();
   EXPECT_EQ("pass", status) << "Page detected device orientation properties.";
 }