WebContents created via ctrl-click should be in a new process (target=_blank).

chrome/browser/ui/browser_navigator_params.cc

 // Copyright 2015 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/browser_navigator_params.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/page_navigator.h"
 
 #if !defined(OS_ANDROID)
 #include "chrome/browser/ui/browser.h"
 #endif
 
 using content::GlobalRequestID;
 using content::NavigationController;
 using content::WebContents;
 
 namespace chrome {
 
 #if defined(OS_ANDROID)
 NavigateParams::NavigateParams(WebContents* a_target_contents)
     : frame_tree_node_id(-1),
       uses_post(false),
       target_contents(a_target_contents),
       source_contents(nullptr),
       disposition(WindowOpenDisposition::CURRENT_TAB),
+      use_new_renderer_for_new_contents(false),
       trusted_source(false),
       transition(ui::PAGE_TRANSITION_LINK),
       is_renderer_initiated(false),
       tabstrip_index(-1),
       tabstrip_add_types(TabStripModel::ADD_ACTIVE),
       window_action(NO_ACTION),
       user_gesture(true),
       path_behavior(RESPECT),
       ref_behavior(IGNORE_REF),
       initiating_profile(nullptr),
       should_replace_current_entry(false),
       created_with_opener(false),
       started_from_context_menu(false) {}
 #else
 NavigateParams::NavigateParams(Browser* a_browser,
                                const GURL& a_url,
                                ui::PageTransition a_transition)
     : url(a_url),
       frame_tree_node_id(-1),
       uses_post(false),
       target_contents(NULL),
       source_contents(NULL),
       disposition(WindowOpenDisposition::CURRENT_TAB),
+      use_new_renderer_for_new_contents(false),
       trusted_source(false),
       transition(a_transition),
       is_renderer_initiated(false),
       tabstrip_index(-1),
       tabstrip_add_types(TabStripModel::ADD_ACTIVE),
       window_action(NO_ACTION),
       user_gesture(true),
       path_behavior(RESPECT),
       ref_behavior(IGNORE_REF),
       browser(a_browser),
       initiating_profile(NULL),
       should_replace_current_entry(false),
       created_with_opener(false),
       started_from_context_menu(false) {}
 
 NavigateParams::NavigateParams(Browser* a_browser,
                                WebContents* a_target_contents)
     : frame_tree_node_id(-1),
       uses_post(false),
       target_contents(a_target_contents),
       source_contents(NULL),
       disposition(WindowOpenDisposition::CURRENT_TAB),
+      use_new_renderer_for_new_contents(false),
       trusted_source(false),
       transition(ui::PAGE_TRANSITION_LINK),
       is_renderer_initiated(false),
       tabstrip_index(-1),
       tabstrip_add_types(TabStripModel::ADD_ACTIVE),
       window_action(NO_ACTION),
       user_gesture(true),
       path_behavior(RESPECT),
       ref_behavior(IGNORE_REF),
       browser(a_browser),
       initiating_profile(NULL),
       should_replace_current_entry(false),
       created_with_opener(false),
       started_from_context_menu(false) {}
 #endif  // !defined(OS_ANDROID)
 
 NavigateParams::NavigateParams(Profile* a_profile,
                                const GURL& a_url,
                                ui::PageTransition a_transition)
     : url(a_url),
       frame_tree_node_id(-1),
       uses_post(false),
       target_contents(NULL),
       source_contents(NULL),
       disposition(WindowOpenDisposition::NEW_FOREGROUND_TAB),
+      use_new_renderer_for_new_contents(false),
       trusted_source(false),
       transition(a_transition),
       is_renderer_initiated(false),
       tabstrip_index(-1),
       tabstrip_add_types(TabStripModel::ADD_ACTIVE),
       window_action(SHOW_WINDOW),
       user_gesture(true),
       path_behavior(RESPECT),
       ref_behavior(IGNORE_REF),
 #if !defined(OS_ANDROID)
@@ skipping 22 matching lines @@
   nav_params->trusted_source = false;
   nav_params->is_renderer_initiated = params.is_renderer_initiated;
   nav_params->should_replace_current_entry =
       params.should_replace_current_entry;
   nav_params->uses_post = params.uses_post;
   nav_params->post_data = params.post_data;
   nav_params->started_from_context_menu = params.started_from_context_menu;
 }
 
 }  // namespace chrome