Don't redraw plugin windows on moving when using gpu browser compositor

content/browser/renderer_host/render_widget_host_view_base.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_widget_host_view_base.h"
 
 #include "base/logging.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
@@ skipping 274 matching lines @@
     if (move.rects_valid) {
       gfx::Rect clip_rect_in_pixel = gfx::win::DIPToScreenRect(move.clip_rect);
       HRGN hrgn = ::CreateRectRgn(clip_rect_in_pixel.x(),
                                   clip_rect_in_pixel.y(),
                                   clip_rect_in_pixel.right(),
                                   clip_rect_in_pixel.bottom());
       gfx::SubtractRectanglesFromRegion(hrgn, move.cutout_rects);
 
       // Note: System will own the hrgn after we call SetWindowRgn,
       // so we don't need to call DeleteObject(hrgn)
-      ::SetWindowRgn(window, hrgn, !move.clip_rect.IsEmpty());
+      ::SetWindowRgn(window, hrgn,
+                     !move.clip_rect.IsEmpty() && (flags & SWP_NOREDRAW) == 0);
 
 #if defined(USE_AURA)
       // When using the software compositor, if the clipping rectangle is empty
       // then DeferWindowPos won't redraw the newly uncovered area under the
       // plugin.
       if (clip_rect_in_pixel.IsEmpty() &&
           !GpuDataManagerImpl::GetInstance()->CanUseGpuBrowserCompositor()) {
         RECT r;
         GetClientRect(window, &r);
         MapWindowPoints(window, parent, reinterpret_cast<POINT*>(&r), 2);
@@ skipping 280 matching lines @@
 void RenderWidgetHostViewBase::FlushInput() {
   RenderWidgetHostImpl* impl = NULL;
   if (GetRenderWidgetHost())
     impl = RenderWidgetHostImpl::From(GetRenderWidgetHost());
   if (!impl)
     return;
   impl->FlushInput();
 }
 
 }  // namespace content