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

chrome/browser/ui/browser_navigator_params.cc

Index: chrome/browser/ui/browser_navigator_params.cc
diff --git a/chrome/browser/ui/browser_navigator_params.cc b/chrome/browser/ui/browser_navigator_params.cc
index b77d087e7f6423193e1ec8488a5b14e4c1deba14..39f86227cc1dcce58b5158d83e770dd5cca26f74 100644
--- a/chrome/browser/ui/browser_navigator_params.cc
+++ b/chrome/browser/ui/browser_navigator_params.cc
@@ -26,6 +26,7 @@ NavigateParams::NavigateParams(WebContents* a_target_contents)
       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),
@@ -49,6 +50,7 @@ NavigateParams::NavigateParams(Browser* a_browser,
       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),
@@ -71,6 +73,7 @@ NavigateParams::NavigateParams(Browser* a_browser,
       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),
@@ -96,6 +99,7 @@ NavigateParams::NavigateParams(Profile* a_profile,
       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),