Referrer Policy: Add a flag to reduce `referer` granularity by default [2/2]

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 500d98e358f9eccf24e7e93ad8c9130e195323b9..a4fc77ec333ef56747fe794f8416a2af19c270a2 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -718,6 +718,10 @@ const char kRendererProcessLimit[]          = "renderer-process-limit";
 // Causes the renderer process to display a dialog on launch.
 const char kRendererStartupDialog[]         = "renderer-startup-dialog";
 
+// Reduce the default `referer` header's granularity.
+const char kReducedReferrerGranularity[] =
+  "reduced-referrer-granularity";
+
 // Handles frame scrolls via the root RenderLayer instead of the FrameView.
 const char kRootLayerScrolls[]              = "root-layer-scrolls";