Add an experiment to avoid memory pressure broadcasts.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 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 "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 1637 matching lines @@
     {"translate-compact-infobar", flag_descriptions::kTranslateCompactUIName,
      flag_descriptions::kTranslateCompactUIDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(translate::kTranslateCompactUI)},
 #endif  // OS_ANDROID
 #if defined(OS_MACOSX)
     {"enable-translate-new-ux", flag_descriptions::kTranslateNewUxName,
      flag_descriptions::kTranslateNewUxDescription, kOsMac,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableTranslateNewUX,
                                switches::kDisableTranslateNewUX)},
 #endif  // OS_MACOSX
+    {"enable-broadcast-memory-pressure",
+     flag_descriptions::kEnableBroadcastMemoryPressureName,
+     flag_descriptions::kEnableBroadcastMemoryPressureDescription,
+     kOsMac | kOsLinux | kOsWin,
+     FEATURE_VALUE_TYPE(features::kEnableBroadcastMemoryPressure)},
 #if defined(OS_LINUX) || defined(OS_WIN) || defined(OS_CHROMEOS)
     {"translate-2016q2-ui", flag_descriptions::kTranslate2016q2UiName,
      flag_descriptions::kTranslate2016q2UiDescription,
      kOsCrOS | kOsWin | kOsLinux,
      FEATURE_VALUE_TYPE(translate::kTranslateUI2016Q2)},
 #endif  // OS_LINUX || OS_WIN || OS_CHROMEOS
     {"translate-lang-by-ulp", flag_descriptions::kTranslateLanguageByUlpName,
      flag_descriptions::kTranslateLanguageByUlpDescription, kOsAll,
      FEATURE_VALUE_TYPE(translate::kTranslateLanguageByULP)},
 #if BUILDFLAG(ENABLE_NATIVE_NOTIFICATIONS)
@@ skipping 1402 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags