[SiteChip] Add UMA, finish wiring site chip experiment up to the omnibox.

chrome/browser/ui/views/toolbar/site_chip_view.cc

Index: chrome/browser/ui/views/toolbar/site_chip_view.cc
diff --git a/chrome/browser/ui/views/toolbar/site_chip_view.cc b/chrome/browser/ui/views/toolbar/site_chip_view.cc
index 4a010ec634cfb4bd8a9d0c7c614ffa34fdb74a6f..76787edac99670142576517109b8087d11e30b40 100644
--- a/chrome/browser/ui/views/toolbar/site_chip_view.cc
+++ b/chrome/browser/ui/views/toolbar/site_chip_view.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/views/toolbar/site_chip_view.h"
 
 #include "base/files/file_path.h"
+#include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ -29,6 +30,7 @@
 #include "chrome/common/extensions/manifest_handlers/icons_handler.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/common/constants.h"
@@ -440,10 +442,12 @@ void SiteChipView::OnPaint(gfx::Canvas* canvas) {
 // this button.
 void SiteChipView::ButtonPressed(views::Button* sender,
                                  const ui::Event& event) {
+  UMA_HISTOGRAM_COUNTS("SiteChip.Pressed", 1);
+  content::RecordAction(content::UserMetricsAction("SiteChipPress"));
   toolbar_view_->location_bar()->GetOmniboxView()->SetFocus();
-  toolbar_view_->location_bar()->GetOmniboxView()->SelectAll(true);
   toolbar_view_->location_bar()->GetOmniboxView()->model()->
       SetCaretVisibility(true);
+  toolbar_view_->location_bar()->GetOmniboxView()->ShowURL();
 }
 
 void SiteChipView::WriteDragDataForView(View* sender,