Add Histogram record to SadTabGtk

chrome/browser/ui/gtk/sad_tab_gtk.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/gtk/sad_tab_gtk.h"
 
+#include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/gtk/gtk_chrome_link_button.h"
 #include "chrome/browser/ui/gtk/tab_contents/chrome_web_contents_view_delegate_gtk.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 33 matching lines @@
   return label;
 }
 
 }  // namespace
 
 SadTabGtk::SadTabGtk(WebContents* web_contents, chrome::SadTabKind kind)
     : web_contents_(web_contents),
       kind_(kind) {
   DCHECK(web_contents_);
 
+  switch (kind_) {
+    case chrome::SAD_TAB_KIND_CRASHED: {
+      static int crashed = 0;
+      UMA_HISTOGRAM_CUSTOM_COUNTS(
+          "Tabs.SadTab.CrashCreated", ++crashed, 1, 1000, 50);
+      break;
+    }
+    case chrome::SAD_TAB_KIND_KILLED: {
+      static int killed = 0;
+      UMA_HISTOGRAM_CUSTOM_COUNTS(
+          "Tabs.SadTab.KilledCreated", ++killed, 1, 1000, 50);
+      break;
+    }
+    default:
+      NOTREACHED();
+  }
+
   // Use an event box to get the background painting correctly.
   event_box_.Own(gtk_event_box_new());
   gtk_widget_modify_bg(event_box_.get(), GTK_STATE_NORMAL,
       (kind == chrome::SAD_TAB_KIND_CRASHED) ?
           &kCrashedBackgroundColor : &kKilledBackgroundColor);
   // Allow ourselves to be resized arbitrarily small.
   gtk_widget_set_size_request(event_box_.get(), 0, 0);
 
   GtkWidget* centering = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
   gtk_container_add(GTK_CONTAINER(event_box_.get()), centering);
@@ skipping 79 matching lines @@
   }
 
   gtk_widget_show_all(event_box_.get());
 }
 
 SadTabGtk::~SadTabGtk() {
   event_box_.Destroy();
 }
 
 void SadTabGtk::Show() {
+  switch (kind_) {
+    case chrome::SAD_TAB_KIND_CRASHED: {
+      static int crashed = 0;
+      UMA_HISTOGRAM_CUSTOM_COUNTS(
+          "Tabs.SadTab.CrashDisplayed", ++crashed, 1, 1000, 50);
+      break;
+    }
+    case chrome::SAD_TAB_KIND_KILLED: {
+      static int killed = 0;
+      UMA_HISTOGRAM_CUSTOM_COUNTS(
+          "Tabs.SadTab.KilledDisplayed", ++killed, 1, 1000, 50);
+      break;
+    }
+    default:
+      NOTREACHED();
+  }
+
   GtkWidget* expanded_container =
       ChromeWebContentsViewDelegateGtk::GetFor(web_contents_)->
           expanded_container();
   gtk_container_add(GTK_CONTAINER(expanded_container), event_box_.get());
   gtk_widget_show(event_box_.get());
 }
 
 void SadTabGtk::Close() {
   GtkWidget* expanded_container =
       ChromeWebContentsViewDelegateGtk::GetFor(web_contents_)->
@@ skipping 11 matching lines @@
   }
 }
 
 namespace chrome {
 
 SadTab* SadTab::Create(content::WebContents* web_contents, SadTabKind kind) {
   return new SadTabGtk(web_contents, kind);
 }
 
 }  // namespace chrome