Add an experiment to avoid memory pressure broadcasts.

base/feature_list.h

 // 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.
 
 #ifndef BASE_FEATURE_LIST_H_
 #define BASE_FEATURE_LIST_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 55 matching lines @@
 //
 // Features can be explicitly forced on or off by specifying a list of comma-
 // separated feature names via the following command-line flags:
 //
 //   --enable-features=Feature5,Feature7
 //   --disable-features=Feature1,Feature2,Feature3
 //
 // After initialization (which should be done single-threaded), the FeatureList
 // API is thread safe.
 //
+// To integrate with Finch for experimental control, Googlers can read
+// go/finch-feature-api
+//
 // Note: This class is a singleton, but does not use base/memory/singleton.h in
 // order to have control over its initialization sequence. Specifically, the
 // intended use is to create an instance of this class and fully initialize it,
 // before setting it as the singleton for a process, via SetInstance().
 class BASE_EXPORT FeatureList {
  public:
   FeatureList();
   ~FeatureList();
 
   // Initializes feature overrides via command-line flags |enable_features| and
@@ skipping 191 matching lines @@
 
   // Whether this object has been initialized from command line.
   bool initialized_from_command_line_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(FeatureList);
 };
 
 }  // namespace base
 
 #endif  // BASE_FEATURE_LIST_H_