Pass the size to the RenderView on creation.

content/browser/renderer_host/render_view_host_impl.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 "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 270 matching lines @@
       delegate_->GetSessionStorageNamespace(instance_.get())->id();
   params.frame_name = frame_name;
   // Ensure the RenderView sets its opener correctly.
   params.opener_route_id = opener_route_id;
   params.swapped_out = !is_active_;
   params.proxy_routing_id = proxy_route_id;
   params.hidden = is_hidden();
   params.never_visible = delegate_->IsNeverVisible();
   params.window_was_created_with_opener = window_was_created_with_opener;
   params.next_page_id = next_page_id;
-  GetWebScreenInfo(&params.screen_info);
+  GetNewViewResizeParams(&params.initial_size);
 
   Send(new ViewMsg_New(params));
 
   // If it's enabled, tell the renderer to set up the Javascript bindings for
   // sending messages back to the browser.
   if (GetProcess()->IsIsolatedGuest())
     DCHECK_EQ(0, enabled_bindings_);
   Send(new ViewMsg_AllowBindings(GetRoutingID(), enabled_bindings_));
   // Let our delegate know that we created a RenderView.
   delegate_->RenderViewCreated(this);
@@ skipping 924 matching lines @@
   // Note: We allow focus and blur from swapped out RenderViewHosts, even when
   // the active RenderViewHost is in a different BrowsingInstance (e.g., WebUI).
   delegate_->Activate();
 }
 
 void RenderViewHostImpl::OnBlur() {
   delegate_->Deactivate();
 }
 
 gfx::Rect RenderViewHostImpl::GetRootWindowResizerRect() const {
+  if (!delegate_) return gfx::Rect();

[piman, 2014/10/29 18:42:57]

In which case is that NULL?
The 2 places that set delegate_ (the constructor and set_delegate) CHECK that
it's !NULL.

[mkosiba (inactive), 2014/10/31 14:35:05]

my bad, I got these mixed up with view_.

   return delegate_->GetRootWindowResizerRect();
 }
 
 void RenderViewHostImpl::ForwardMouseEvent(
     const blink::WebMouseEvent& mouse_event) {
 
   // We make a copy of the mouse event because
   // RenderWidgetHost::ForwardMouseEvent will delete |mouse_event|.
   blink::WebMouseEvent event_copy(mouse_event);
   RenderWidgetHostImpl::ForwardMouseEvent(event_copy);
@@ skipping 180 matching lines @@
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->ResetForMainFrameSwap();
 }
 
 void RenderViewHostImpl::SelectWordAroundCaret() {
   Send(new ViewMsg_SelectWordAroundCaret(GetRoutingID()));
 }
 
 }  // namespace content