Update base::StartsWith calls to new form

chrome/browser/chromeos/input_method/input_method_engine.cc

 // Copyright 2013 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 "chrome/browser/chromeos/input_method/input_method_engine.h"
 
 #undef FocusIn
 #undef FocusOut
 #undef RootWindow
 #include <map>
@@ skipping 54 matching lines @@
   while (*s) {
     if ((*s & 0xC0) != 0x80)
       ret++;
     ++s;
   }
   return ret;
 }
 
 std::string GetKeyFromEvent(const ui::KeyEvent& event) {
   const std::string code = event.GetCodeString();
-  if (base::StartsWithASCII(code, "Control", true))
+  if (base::StartsWith(code, "Control", base::CompareCase::SENSITIVE))
     return "Ctrl";
-  if (base::StartsWithASCII(code, "Shift", true))
+  if (base::StartsWith(code, "Shift", base::CompareCase::SENSITIVE))
     return "Shift";
-  if (base::StartsWithASCII(code, "Alt", true))
+  if (base::StartsWith(code, "Alt", base::CompareCase::SENSITIVE))
     return "Alt";
-  if (base::StartsWithASCII(code, "Arrow", true))
+  if (base::StartsWith(code, "Arrow", base::CompareCase::SENSITIVE))
     return code.substr(5);
   if (code == "Escape")
     return "Esc";
   if (code == "Backspace" || code == "Tab" ||
       code == "Enter" || code == "CapsLock" ||
       code == "Power")
     return code;
   // Cases for media keys.
   switch (event.key_code()) {
     case ui::VKEY_BROWSER_BACK:
@@ skipping 614 matching lines @@
           // TODO(nona): Implement it.
           break;
       }
     }
   }
 
   // TODO(nona): Support item.children.
 }
 
 }  // namespace chromeos