Use base::StartWith() in more places when appropriate.

device/bluetooth/bluetooth_uuid.cc

 // Copyright 2014 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 "device/bluetooth/bluetooth_uuid.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 
 namespace device {
 
 namespace {
 
-const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb";
-const char* kCommonUuidPrefix = "0000";
+const char kCommonUuidPostfix[] = "-0000-1000-8000-00805f9b34fb";
+const char kCommonUuidPrefix[] = "0000";
 
 // Returns the canonical, 128-bit canonical, and the format of the UUID
 // in |canonical|, |canonical_128|, and |format| based on |uuid|.
 void GetCanonicalUuid(std::string uuid,
                       std::string* canonical,
                       std::string* canonical_128,
                       BluetoothUUID::Format* format) {
   // Initialize the values for the failure case.
   canonical->clear();
   canonical_128->clear();
   *format = BluetoothUUID::kFormatInvalid;
 
   if (uuid.empty())
     return;
 
-  if (uuid.size() < 11 && uuid.find("0x") == 0)
+  if (uuid.size() < 11 &&
+      base::StartsWith(uuid, "0x", base::CompareCase::SENSITIVE)) {
     uuid = uuid.substr(2);
+  }
 
   if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36))
     return;
 
   for (size_t i = 0; i < uuid.size(); ++i) {
     if (i == 8 || i == 13 || i == 18 || i == 23) {
       if (uuid[i] != '-')
         return;
     } else {
       if (!base::IsHexDigit(uuid[i]))
@@ skipping 42 matching lines @@
 
 bool BluetoothUUID::operator!=(const BluetoothUUID& uuid) const {
   return canonical_value_ != uuid.canonical_value_;
 }
 
 void PrintTo(const BluetoothUUID& uuid, std::ostream* out) {
   *out << uuid.canonical_value();
 }
 
 }  // namespace device