Unit-testing AnswerCardSearchProvider.

chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc

Index: chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc
diff --git a/chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc b/chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc
index e8de4cb88f98e2c116765086ffd1ceb8929e24bf..442968fd01f03b9f085857cad6128a25d0cf29db 100644
--- a/chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc
+++ b/chrome/browser/ui/app_list/search/answer_card/answer_card_web_contents.cc
@@ -7,6 +7,9 @@
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser_navigator.h"
+#include "chrome/browser/ui/browser_navigator_params.h"
+#include "content/public/browser/page_navigator.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/web_contents.h"
@@ -59,7 +62,8 @@ AnswerCardWebContents::AnswerCardWebContents(Profile* profile)
               profile,
               content::SiteInstance::Create(profile)))),
       mouse_event_callback_(base::Bind(&AnswerCardWebContents::HandleMouseEvent,
-                                       base::Unretained(this))) {
+                                       base::Unretained(this))),
+      profile_(profile) {
   content::RendererPreferences* renderer_prefs =
       web_contents_->GetMutableRendererPrefs();
   renderer_prefs->can_accept_load_drops = false;
@@ -116,7 +120,26 @@ content::WebContents* AnswerCardWebContents::OpenURLFromTab(
   if (!params.user_gesture)
     return WebContentsDelegate::OpenURLFromTab(source, params);
 
-  return delegate()->OpenURLFromTab(params);
+  // Open the user-clicked link in the browser taking into account the requested
+  // disposition.
+  chrome::NavigateParams new_tab_params(profile_, params.url,
+                                        params.transition);
+
+  new_tab_params.disposition = params.disposition;
+
+  if (params.disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB) {
+    // When the user asks to open a link as a background tab, we show an
+    // activated window with the new activated tab after the user closes the
+    // launcher. So it's "background" relative to the launcher itself.
+    new_tab_params.disposition = WindowOpenDisposition::NEW_FOREGROUND_TAB;
+    new_tab_params.window_action = chrome::NavigateParams::SHOW_WINDOW_INACTIVE;
+  }
+
+  chrome::Navigate(&new_tab_params);
+
+  base::RecordAction(base::UserMetricsAction("SearchAnswer_OpenedUrl"));
+
+  return new_tab_params.target_contents;
 }
 
 bool AnswerCardWebContents::HandleContextMenu(