Convert the SkiaBenchmarkingExtension to a gin::Wrappable class

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index d7dd03c88e0868350371f56d91dbc49bf7039650..b7f3ecc2f7c0248310df47325d8556a9033f4f54 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -116,6 +116,7 @@
 #include "content/renderer/renderer_webcolorchooser_impl.h"
 #include "content/renderer/resizing_mode_selector.h"
 #include "content/renderer/savable_resources.h"
+#include "content/renderer/skia_benchmarking_extension.h"
 #include "content/renderer/speech_recognition_dispatcher.h"
 #include "content/renderer/stats_collection_controller.h"
 #include "content/renderer/stats_collection_observer.h"
@@ -3645,6 +3646,11 @@ void RenderViewImpl::didClearWindowObject(WebFrame* frame, int world_id) {
 
   if (enabled_bindings_ & BINDINGS_POLICY_STATS_COLLECTION)
     StatsCollectionController::Install(frame);
+
+  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+
+  if (command_line.HasSwitch(switches::kEnableSkiaBenchmarking))
+    SkiaBenchmarking::Install(frame);
 }
 
 void RenderViewImpl::didCreateDocumentElement(WebFrame* frame) {