Gate sending referrers to CWS on whether the profile has SafeBrowsing enabled.

chrome/browser/extensions/webstore_inline_installer.cc

Index: chrome/browser/extensions/webstore_inline_installer.cc
diff --git a/chrome/browser/extensions/webstore_inline_installer.cc b/chrome/browser/extensions/webstore_inline_installer.cc
index 52f23c280b536524cd98810999f1609540765df7..62e0f41cf6c4c8a554a26e13172783e9c8a5789a 100644
--- a/chrome/browser/extensions/webstore_inline_installer.cc
+++ b/chrome/browser/extensions/webstore_inline_installer.cc
@@ -13,6 +13,8 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
+#include "chrome/common/pref_names.h"
+#include "components/prefs/pref_service.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/web_contents.h"
@@ -107,6 +109,13 @@ std::string WebstoreInlineInstaller::GetJsonPostData() {
   if (!web_contents())
     return std::string();
 
+  // Report extra data only when SafeBrowsing is enabled for the current
+  // profile.
+  Profile* profile =
+      Profile::FromBrowserContext(web_contents()->GetBrowserContext());

[Devlin, 2017/04/21 17:09:43]

nit: looks like WebstoreStandaloneInstaller has a profile() accessor that we
could use instead of this.

[robertshield, 2017/04/21 18:02:54]

Thanks, done.

+  if (!profile->GetPrefs()->GetBoolean(prefs::kSafeBrowsingEnabled))
+    return std::string();
+
   content::NavigationController& navigation_controller =
       web_contents()->GetController();
   content::NavigationEntry* navigation_entry =