Add UMA and Rappor metrics to capture URLs passed in at startup.

chrome/browser/ui/startup/startup_browser_creator_impl.h

Index: chrome/browser/ui/startup/startup_browser_creator_impl.h
diff --git a/chrome/browser/ui/startup/startup_browser_creator_impl.h b/chrome/browser/ui/startup/startup_browser_creator_impl.h
index 8559056dfdba6bcf7e8a78a95ffd28848b3c805d..980aeef34182f741076c2a0557c5643229e7cdfa 100644
--- a/chrome/browser/ui/startup/startup_browser_creator_impl.h
+++ b/chrome/browser/ui/startup/startup_browser_creator_impl.h
@@ -151,6 +151,9 @@ class StartupBrowserCreatorImpl {
   // suppress injecting the welcome page for future launches.
   void InitializeWelcomeRunType(const std::vector<GURL>& urls_to_open);
 
+  // Record Rappor metrics on startup URLs.
+  void RecordRapporOnStartupURLs(const std::vector<GURL>& urls_to_open);

[Peter Kasting, 2015/08/12 22:28:23]

Nit: If this vector type is used enough maybe it would make sense to have a
typedef for it somewhere.

[rkaplow, 2015/08/12 22:37:40]

Acknowledged. Seems to be only 3-4 places here so seems ok to leave as is.

+
   const base::FilePath cur_dir_;
   const base::CommandLine& command_line_;
   Profile* profile_;