diff --git a/libcef/browser/osr/render_widget_host_view_osr.cc b/libcef/browser/osr/render_widget_host_view_osr.cc
index d75937399..2c279e986 100644
--- a/libcef/browser/osr/render_widget_host_view_osr.cc
+++ b/libcef/browser/osr/render_widget_host_view_osr.cc
@@ -1424,6 +1424,7 @@ void CefRenderWidgetHostViewOSR::ResizeRootLayer() {
 
   GetRootLayer()->SetBounds(gfx::Rect(size));
   GetCompositor()->SetScaleAndSize(scale_factor_, size_in_pixels);
+  PlatformResizeCompositorWidget(size_in_pixels);
 }
 
 void CefRenderWidgetHostViewOSR::OnBeginFrameTimerTick() {
diff --git a/libcef/browser/osr/render_widget_host_view_osr.h b/libcef/browser/osr/render_widget_host_view_osr.h
index bbc897982..e063948a8 100644
--- a/libcef/browser/osr/render_widget_host_view_osr.h
+++ b/libcef/browser/osr/render_widget_host_view_osr.h
@@ -313,6 +313,7 @@ class CefRenderWidgetHostViewOSR
 #endif  // defined(OS_MACOSX)
 
   void PlatformCreateCompositorWidget();
+  void PlatformResizeCompositorWidget(const gfx::Size& size);
   void PlatformDestroyCompositorWidget();
 
 #if defined(USE_AURA)
diff --git a/libcef/browser/osr/render_widget_host_view_osr_linux.cc b/libcef/browser/osr/render_widget_host_view_osr_linux.cc
index 444103a2a..d239e665d 100644
--- a/libcef/browser/osr/render_widget_host_view_osr_linux.cc
+++ b/libcef/browser/osr/render_widget_host_view_osr_linux.cc
@@ -123,6 +123,9 @@ void CefRenderWidgetHostViewOSR::PlatformCreateCompositorWidget() {
   compositor_widget_ = window_->xwindow();
 }
 
+void CefRenderWidgetHostViewOSR::PlatformResizeCompositorWidget(const gfx::Size&) {
+}
+
 void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
   DCHECK(window_);
   window_->Close();
diff --git a/libcef/browser/osr/render_widget_host_view_osr_mac.mm b/libcef/browser/osr/render_widget_host_view_osr_mac.mm
index f2fcc42a1..850ca7227 100644
--- a/libcef/browser/osr/render_widget_host_view_osr_mac.mm
+++ b/libcef/browser/osr/render_widget_host_view_osr_mac.mm
@@ -389,6 +389,9 @@ void CefRenderWidgetHostViewOSR::PlatformCreateCompositorWidget() {
       mac_helper_, mac_helper_, render_widget_host_->is_hidden(), true));
 }
 
+void CefRenderWidgetHostViewOSR::PlatformResizeCompositorWidget(const gfx::Size&) {
+}
+
 void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
   DCHECK(window_);
 
diff --git a/libcef/browser/osr/render_widget_host_view_osr_win.cc b/libcef/browser/osr/render_widget_host_view_osr_win.cc
index 1f7e0cf2a..1d85fad44 100644
--- a/libcef/browser/osr/render_widget_host_view_osr_win.cc
+++ b/libcef/browser/osr/render_widget_host_view_osr_win.cc
@@ -149,6 +149,12 @@ void CefRenderWidgetHostViewOSR::PlatformCreateCompositorWidget() {
   compositor_widget_ = window_->hwnd();
 }
 
+void CefRenderWidgetHostViewOSR::PlatformResizeCompositorWidget(const gfx::Size& size) {
+  DCHECK(window_);
+  SetWindowPos(window_->hwnd(), NULL, 0, 0, size.width(), size.height(),
+               SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW);
+}
+
 void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
   window_.reset(NULL);
   compositor_widget_ = gfx::kNullAcceleratedWidget;