Update SplitString calls to new form

ui/events/devices/x11/touch_factory_x11.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 "ui/events/devices/x11/touch_factory_x11.h"
 
 #include <X11/Xatom.h>
 #include <X11/cursorfont.h>
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
@@ skipping 44 matching lines @@
 // static
 void TouchFactory::SetTouchDeviceListFromCommandLine() {
   // Get a list of pointer-devices that should be treated as touch-devices.
   // This is primarily used for testing/debugging touch-event processing when a
   // touch-device isn't available.
   std::string touch_devices =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kTouchDevices);
 
   if (!touch_devices.empty()) {
-    std::vector<std::string> devs;
     std::vector<int> device_ids;
-    int devid;
-    base::SplitString(touch_devices, ',', &devs);
-    for (std::vector<std::string>::iterator iter = devs.begin();
-        iter != devs.end(); ++iter) {
-      if (base::StringToInt(*iter, reinterpret_cast<int*>(&devid)))
+    for (const base::StringPiece& dev :
+         base::SplitStringPiece(touch_devices, ",", base::TRIM_WHITESPACE,
+                                base::SPLIT_WANT_ALL)) {
+      int devid;
+      if (base::StringToInt(dev, &devid))
         device_ids.push_back(devid);
       else
-        DLOG(WARNING) << "Invalid touch-device id: " << *iter;
+        DLOG(WARNING) << "Invalid touch-device id: " << dev.as_string();
     }
     ui::TouchFactory::GetInstance()->SetTouchDeviceList(device_ids);
   }
 }
 
 void TouchFactory::UpdateDeviceList(Display* display) {
   // Detect touch devices.
   touch_device_lookup_.reset();
   touch_device_list_.clear();
   touchscreen_ids_.clear();
@@ skipping 229 matching lines @@
       std::find_if(touchscreens.begin(), touchscreens.end(),
                    [device_id](const TouchscreenDevice& touchscreen) {
                      return touchscreen.id == device_id;
                    });
   // Internal displays will have a vid and pid of 0. Ignore them.
   if (it != touchscreens.end() && it->vendor_id && it->product_id)
     touchscreen_ids_.insert(std::make_pair(it->vendor_id, it->product_id));
 }
 
 }  // namespace ui