Initial implementation for sharing field trial state (win)

content/public/common/content_features.cc

Index: content/public/common/content_features.cc
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index 66ecbba63120635235ca8b08019cd66e73d2f6b2..b5254cb1fa27da8adf44f79affa58c388b54d74e 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -136,6 +136,10 @@ const base::Feature kRenderingPipelineThrottling{
 const base::Feature kScrollAnchoring{"ScrollAnchoring",
                                      base::FEATURE_DISABLED_BY_DEFAULT};
 
+// Uses shared memory to communicate field trial (experiment) state.
+const base::Feature kShareFieldTrialStateViaSharedMemory{
+    "ShareFieldTrialStateViaSharedMemory", base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Speculatively launches Service Workers on mouse/touch events.
 const base::Feature kSpeculativeLaunchServiceWorker{
     "SpeculativeLaunchServiceWorker", base::FEATURE_DISABLED_BY_DEFAULT};