Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

base/process/process_win.cc

 // Copyright (c) 2011 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 "base/process/process.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/process/kill.h"
+#include "base/strings/string_util.h"
 #include "base/win/windows_version.h"
 
 namespace {
 
 DWORD kBasicProcessAccess =
   PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION | SYNCHRONIZE;
 
 } // namespace
 
 namespace base {
@@ skipping 160 matching lines @@
     // background priority for background renderers (this code path is
     // technically for more than just the renderers but they're the only use
     // case in practice and experimenting here direclty is thus easier -- plus
     // it doesn't really hurt as above we already state our intent of using
     // PROCESS_MODE_BACKGROUND_BEGIN if available which is essentially
     // IDLE_PRIORITY_CLASS plus lowered IO priority). Enabled by default in the
     // asbence of field trials to get coverage on the perf waterfall.
     DWORD background_priority = IDLE_PRIORITY_CLASS;
     base::FieldTrial* trial =
         base::FieldTrialList::Find("BackgroundRendererProcesses");
-    if (trial && trial->group_name() == "AllowBelowNormalFromBrowser")
+    if (trial && StartsWith(trial->group_name(), "AllowBelowNormalFromBrowser",
+                            CompareCase::SENSITIVE)) {
       background_priority = BELOW_NORMAL_PRIORITY_CLASS;
+    }
 
     priority = value ? background_priority : NORMAL_PRIORITY_CLASS;
   }
 
   return (::SetPriorityClass(Handle(), priority) != 0);
 }
 
 int Process::GetPriority() const {
   DCHECK(IsValid());
   return ::GetPriorityClass(Handle());
 }
 
 }  // namespace base