diff --git content/browser/web_contents/web_contents_impl.cc content/browser/web_contents/web_contents_impl.cc
index 812cfe34f691..308fde5e82d6 100644
--- content/browser/web_contents/web_contents_impl.cc
+++ content/browser/web_contents/web_contents_impl.cc
@@ -2156,21 +2156,30 @@ void WebContentsImpl::Init(const WebContents::CreateParams& params) {
   std::string unique_name;
   frame_tree_.root()->SetFrameName(params.main_frame_name, unique_name);
 
-  WebContentsViewDelegate* delegate =
-      GetContentClient()->browser()->GetWebContentsViewDelegate(this);
+  if (params.view && params.delegate_view) {
+    view_.reset(params.view);
+    render_view_host_delegate_view_ = params.delegate_view;
+  }
 
-  if (GuestMode::IsCrossProcessFrameGuest(this)) {
-    view_.reset(new WebContentsViewChildFrame(
-        this, delegate, &render_view_host_delegate_view_));
-  } else {
-    view_.reset(CreateWebContentsView(this, delegate,
-                                      &render_view_host_delegate_view_));
-    if (browser_plugin_guest_) {
-      view_ = std::make_unique<WebContentsViewGuest>(
-          this, browser_plugin_guest_.get(), std::move(view_),
-          &render_view_host_delegate_view_);
+  if (!view_) {
+    WebContentsViewDelegate* delegate =
+        GetContentClient()->browser()->GetWebContentsViewDelegate(this);
+
+    if (GuestMode::IsCrossProcessFrameGuest(this)) {
+      view_.reset(new WebContentsViewChildFrame(
+          this, delegate, &render_view_host_delegate_view_));
+    } else {
+      view_.reset(CreateWebContentsView(this, delegate,
+                                        &render_view_host_delegate_view_));
     }
   }
+
+  if (browser_plugin_guest_ && !GuestMode::IsCrossProcessFrameGuest(this)) {
+    view_.reset(new WebContentsViewGuest(this, browser_plugin_guest_.get(),
+                                         std::move(view_),
+                                         &render_view_host_delegate_view_));
+  }
+
   CHECK(render_view_host_delegate_view_);
   CHECK(view_.get());
 
@@ -2871,6 +2880,15 @@ RenderFrameHostDelegate* WebContentsImpl::CreateNewWindow(
   // objects.
   create_params.renderer_initiated_creation = !is_new_browsing_instance;
 
+  if (delegate_) {
+    delegate_->GetCustomWebContentsView(this,
+                                        params.target_url,
+                                        render_process_id,
+                                        opener->GetRoutingID(),
+                                        &create_params.view,
+                                        &create_params.delegate_view);
+  }
+
   // If |is_new_browsing_instance| is true, defer routing_id allocation
   // to the WebContentsImpl::Create() call. This is required because with
   // a new browsing instance, WebContentsImpl::Create() may elect a different
@@ -2916,7 +2934,7 @@ RenderFrameHostDelegate* WebContentsImpl::CreateNewWindow(
       // TODO(brettw): It seems bogus that we have to call this function on the
       // newly created object and give it one of its own member variables.
       RenderWidgetHostView* widget_view = new_view->CreateViewForWidget(
-          new_contents_impl->GetRenderViewHost()->GetWidget(), false);
+          new_contents_impl->GetRenderViewHost()->GetWidget(), nullptr);
       if (!renderer_started_hidden) {
         // RenderWidgets for frames always initialize as hidden. If the renderer
         // created this window as visible, then we show it here.
@@ -6599,7 +6617,7 @@ InterstitialPageImpl* WebContentsImpl::GetInterstitialForRenderManager() {
 void WebContentsImpl::CreateRenderWidgetHostViewForRenderManager(
     RenderViewHost* render_view_host) {
   RenderWidgetHostViewBase* rwh_view =
-      view_->CreateViewForWidget(render_view_host->GetWidget(), false);
+      view_->CreateViewForWidget(render_view_host->GetWidget(), nullptr);
   rwh_view->SetSize(GetSizeForNewRenderView(true));
 }
 
diff --git content/public/browser/web_contents.cc content/public/browser/web_contents.cc
index 2e133afb8da8..e9a88a6bb96b 100644
--- content/public/browser/web_contents.cc
+++ content/public/browser/web_contents.cc
@@ -31,6 +31,8 @@ WebContents::CreateParams::CreateParams(BrowserContext* context,
       renderer_initiated_creation(false),
       desired_renderer_state(kOkayToHaveRendererProcess),
       starting_sandbox_flags(blink::WebSandboxFlags::kNone),
+      view(nullptr),
+      delegate_view(nullptr),
       is_never_visible(false) {}
 
 WebContents::CreateParams::CreateParams(const CreateParams& other) = default;
diff --git content/public/browser/web_contents.h content/public/browser/web_contents.h
index 075dd2545430..53b4cfb790c8 100644
--- content/public/browser/web_contents.h
+++ content/public/browser/web_contents.h
@@ -79,9 +79,11 @@ class BrowserPluginGuestDelegate;
 class InterstitialPage;
 class RenderFrameHost;
 class RenderViewHost;
+class RenderViewHostDelegateView;
 class RenderWidgetHost;
 class RenderWidgetHostView;
 class WebContentsDelegate;
+class WebContentsView;
 struct CustomContextMenuContext;
 struct DropData;
 struct MHTMLGenerationParams;
@@ -217,6 +219,10 @@ class WebContents : public PageNavigator,
     // Sandboxing flags set on the new WebContents.
     blink::WebSandboxFlags starting_sandbox_flags;
 
+    // Optionally specify the view and delegate view.
+    content::WebContentsView* view;
+    content::RenderViewHostDelegateView* delegate_view;
+
     // Value used to set the last time the WebContents was made active, this is
     // the value that'll be returned by GetLastActiveTime(). If this is left
     // default initialized then the value is not passed on to the WebContents
diff --git content/public/browser/web_contents_delegate.h content/public/browser/web_contents_delegate.h
index dedaf25af5ba..4133b980bebb 100644
--- content/public/browser/web_contents_delegate.h
+++ content/public/browser/web_contents_delegate.h
@@ -57,10 +57,12 @@ class ColorChooser;
 class FileSelectListener;
 class JavaScriptDialogManager;
 class RenderFrameHost;
+class RenderViewHostDelegateView;
 class RenderWidgetHost;
 class SessionStorageNamespace;
 class SiteInstance;
 class WebContentsImpl;
+class WebContentsView;
 struct ContextMenuParams;
 struct DropData;
 struct NativeWebKeyboardEvent;
@@ -327,6 +329,14 @@ class CONTENT_EXPORT WebContentsDelegate {
       const std::string& partition_id,
       SessionStorageNamespace* session_storage_namespace);
 
+  virtual void GetCustomWebContentsView(
+      WebContents* web_contents,
+      const GURL& target_url,
+      int opener_render_process_id,
+      int opener_render_frame_id,
+      content::WebContentsView** view,
+      content::RenderViewHostDelegateView** delegate_view) {}
+
   // Notifies the delegate about the creation of a new WebContents. This
   // typically happens when popups are created.
   virtual void WebContentsCreated(WebContents* source_contents,