[sensors] Ambient light sensor implementation for ChromeOS and Linux.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index e1aa6146730c52e494d7ae145389538d2d18f53e..a39df6b8738651619cd7d7e2bb5392d797df3693 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2034,7 +2034,8 @@ const FeatureEntry kFeatureEntries[] = {
      IDS_FLAGS_SAVEAS_MENU_LABEL_EXPERIMENT_DESCRIPTION, kOsDesktop,
      SINGLE_VALUE_TYPE(switches::kEnableSaveAsMenuLabelExperiment)},
     {"enable-generic-sensor", IDS_FLAGS_ENABLE_GENERIC_SENSOR_NAME,
-     IDS_FLAGS_ENABLE_GENERIC_SENSOR_DESCRIPTION, kOsAndroid | kOsMac,
+     IDS_FLAGS_ENABLE_GENERIC_SENSOR_DESCRIPTION,
+     kOsAndroid | kOsMac | kOsLinux | kOsCrOS,
      FEATURE_VALUE_TYPE(features::kGenericSensor)},
     {"expensive-background-timer-throttling",
      IDS_FLAGS_EXPENSIVE_BACKGROUND_TIMER_THROTTLING_NAME,