Remove unused field from WebContentsViewAura and add comment as to why

content/browser/web_contents/web_contents_view_aura.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/web_contents/web_contents_view_aura.h"
 
 #include "base/utf_string_conversions.h"
 #include "content/browser/renderer_host/dip_util.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/web_contents/interstitial_page_impl.h"
@@ skipping 233 matching lines @@
   aura::Window* window = rvh->GetView()->GetNativeView();
   aura::Window::ConvertPointToTarget(root_window, window, &client_loc);
   rvh->DragSourceEndedAt(client_loc.x(), client_loc.y(), screen_loc.x(),
       screen_loc.y(), ops);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsViewAura, WebContentsView implementation:
 
 void WebContentsViewAura::CreateView(const gfx::Size& initial_size) {
-  initial_size_ = initial_size;
+  // NOTE: we ignore |initial_size| since in some cases it's wrong (such as
+  // if the bookmark bar is not shown and you create a new tab). The right
+  // value is set shortly after this, so its safe to ignore.
 
   window_.reset(new aura::Window(this));
   window_->set_owned_by_parent(false);
   window_->SetType(aura::client::WINDOW_TYPE_CONTROL);
   window_->SetTransparent(false);
   window_->Init(ui::LAYER_NOT_DRAWN);
   window_->SetParent(NULL);
   window_->layer()->SetMasksToBounds(true);
   window_->SetName("WebContentsViewAura");
 
@@ skipping 391 matching lines @@
     OnDragEntered(event);
 
   web_contents_->GetRenderViewHost()->DragTargetDrop(
       event.location(),
       gfx::Screen::GetCursorScreenPoint(),
       ConvertAuraEventFlagsToWebInputEventModifiers(event.flags()));
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDrop();
   return current_drag_op_;
 }