Move more string_util functions to base namespace.

ui/events/ozone/evdev/libgestures_glue/gesture_feedback.cc

 // Copyright 2015 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/ozone/evdev/libgestures_glue/gesture_feedback.h"
 
 #include <time.h>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 82 matching lines @@
   }
   if (!strftime(buffer, kTouchLogTimestampMaxSize, "%Y%m%d-%H%M%S", &timeinfo))
     return "";
   return std::string(buffer);
 }
 
 // Canonize the device name for logging.
 std::string GetCanonicalDeviceName(const std::string& name) {
   std::string ret(name);
   for (size_t i = 0; i < ret.size(); ++i)
-    if (!IsAsciiAlpha(ret[i]))
+    if (!base::IsAsciiAlpha(ret[i]))
       ret[i] = '_';
   return ret;
 }
 
 // Name event logs in a way that is compatible with existing toolchain.
 std::string GenerateEventLogName(GesturePropertyProvider* provider,
                                  const base::FilePath& out_dir,
                                  const std::string& prefix,
                                  const std::string& now,
                                  int id) {
@@ skipping 96 matching lines @@
   }
 
   // Compress touchpad/mouse logs on another thread and return.
   base::WorkerPool::PostTaskAndReply(
       FROM_HERE,
       base::Bind(&CompressDumpedLog, base::Passed(&log_paths_to_be_compressed)),
       base::Bind(reply, base::Passed(&log_paths)), true /* task_is_slow */);
 }
 
 }  // namespace ui