chrome/blink: Add functionality for in-product help for media elements.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 0a963d1a4ed28f1bc00619cb9caf989bb3bb6465..337658ea6410e75a4266171d435f3359fe38330e 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -135,6 +135,8 @@
 #include "components/dom_distiller/core/dom_distiller_switches.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/error_page/common/error_page_switches.h"
+#include "components/feature_engagement_tracker/public/feature_constants.h"
+#include "components/feature_engagement_tracker/public/feature_list.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/metrics/call_stack_profile_collector.h"
 #include "components/metrics/client_info.h"
@@ -1910,6 +1912,14 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
     task_scheduler_util::AddVariationParamsToCommandLine("Renderer",
                                                          command_line);
   }
+
+  if (process_type == switches::kRendererProcess &&
+      base::FeatureList::IsEnabled(
+          feature_engagement_tracker::kIPHMediaDownloadFeature)) {
+    LOG(ERROR) << "Appending SWITCH FOR RENDEREREREREREFFBKEIVFBOUE";
+    command_line->AppendSwitch(
+        feature_engagement_tracker::kEnableMediaDownloadIPH);
+  }
 }
 
 std::string ChromeContentBrowserClient::GetApplicationLocale() {