Fix for URL opening code

chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h

Index: chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h
diff --git a/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h b/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h
index 521a8833a8cd74161f7ffd07ec62e9afa8af4ec9..c777d81207e2d7ed47e51e6bf71780e7f1407a35 100644
--- a/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h
+++ b/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h
@@ -13,6 +13,7 @@
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_browser_main_extra_parts.h"
+#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
 #include "ui/display/display_observer.h"
 
 class ChromeBrowserMainParts;
@@ -26,7 +27,8 @@ class InputDeviceEventObserver;
 }  // namespace ui
 
 class ChromeBrowserMainExtraPartsMetrics : public ChromeBrowserMainExtraParts,
-                                           public display::DisplayObserver {
+                                           public display::DisplayObserver,
+                                           public TabStripModelObserver {
  public:
   ChromeBrowserMainExtraPartsMetrics();
   ~ChromeBrowserMainExtraPartsMetrics() override;
@@ -36,6 +38,12 @@ class ChromeBrowserMainExtraPartsMetrics : public ChromeBrowserMainExtraParts,
   void PreBrowserStart() override;
   void PostBrowserStart() override;
 
+  // Overridden from TabStripModelObserver:
+  void TabInsertedAt(TabStripModel* tab_strip_model,
+                     content::WebContents* contents,
+                     int index,
+                     bool foreground) override;
+
  private:
 #if defined(OS_MACOSX)
   // Records Mac specific metrics.