Revert of Fix legacy dummy window visibility inheritance....

Revert of Fix legacy dummy window visibility inheritance. RenderWidgetHostViewAura may be shown(::Show()) bef… (https://codereview.chromium.org/272173002/)

Reason for revert:
Regression: makes frameless packaged app windows
unmovable in Aero. Confirmed with local git revert.

BUG=374681
TBR=ben@chromium.org

Original issue's description:
> Fix legacy dummy window visibility inheritance. RenderWidgetHostViewAura may be shown(::Show()) before legacy window creation, in such case dummy window was later created hidden which leads to wrong behaviour. E.g. NPAPI Flash in windowless mode tracks associated window visibility and slows down draw invalidation.
> 
> R=ben@chromium.org
> BUG=
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=270739

Review URL: https://codereview.chromium.org/309553010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274172 0039d316-1c4b-4281-b951-d872f2087c98

AUTHORS

@@ -33,7 +33,6 @@ Anastasios Cassiotis <tom.cassiotis@gmail.com>
 Ancil George <ancilgeorge@samsung.com>
 Andrei Parvu <andrei.prv@gmail.com>
 Andrei Parvu <parvu@adobe.com>
-Andrei Kurushin <ajax16384@gmail.com>
 Andrew Brampton <me@bramp.net>
 Andrew Tulloch <andrew@tullo.ch>
 Anish Patankar <anish.p@samsung.com>

content/browser/renderer_host/render_widget_host_view_aura.cc

@@ -988,17 +988,13 @@ void RenderWidgetHostViewAura::InternalSetBounds(const gfx::Rect& rect) {
   // Additonally the legacy dummy window is needed for accessibility and for
   // scrolling to work in legacy drivers for trackpoints/trackpads, etc.
   if (GetNativeViewId()) {
-    bool show_legacy_window = false;
     if (!legacy_render_widget_host_HWND_) {
       legacy_render_widget_host_HWND_ = LegacyRenderWidgetHostHWND::Create(
           reinterpret_cast<HWND>(GetNativeViewId()));
-      show_legacy_window = window_->TargetVisibility();
     }
     if (legacy_render_widget_host_HWND_) {
       legacy_render_widget_host_HWND_->SetBounds(
           window_->GetBoundsInRootWindow());
-      if (show_legacy_window)
-        legacy_render_widget_host_HWND_->Show();
     }
   }