Remove remaining legacy SplitString calls.

chromecast/base/metrics/cast_metrics_helper.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 "chromecast/base/metrics/cast_metrics_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
@@ skipping 36 matching lines @@
     std::string* app_id,
     std::string* session_id,
     std::string* sdk_version) {
   DCHECK(action_name);
   DCHECK(app_id);
   DCHECK(session_id);
   DCHECK(sdk_version);
   if (metrics_name.find(kMetricsNameAppInfoDelimiter) == std::string::npos)
     return false;
 
-  std::vector<std::string> tokens;
-  base::SplitString(metrics_name, kMetricsNameAppInfoDelimiter, &tokens);
+  std::vector<std::string> tokens = base::SplitString(
+      metrics_name, std::string(1, kMetricsNameAppInfoDelimiter),
+      base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   DCHECK_EQ(tokens.size(), 4u);
   // The order of tokens should match EncodeAppInfoIntoMetricsName().
   *action_name = tokens[0];
   *app_id = tokens[1];
   *session_id = tokens[2];
   *sdk_version = tokens[3];
   return true;
 }
 
 // static
@@ skipping 178 matching lines @@
     const base::TimeDelta& value) {
   // Follow UMA_HISTOGRAM_MEDIUM_TIMES definition.
   LogTimeHistogramEvent(name, value,
                         base::TimeDelta::FromMilliseconds(10),
                         base::TimeDelta::FromMinutes(3),
                         50);
 }
 
 }  // namespace metrics
 }  // namespace chromecast