reverts AcceleratedWidgetMacNSView into offscreen class

atom/browser/native_window_mac.h

@@ -12,7 +12,6 @@
 
 #include "base/mac/scoped_nsobject.h"
 #include "atom/browser/native_window.h"
-#include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
 
 @class AtomNSWindow;
 @class AtomNSWindowDelegate;
@@ -20,9 +19,7 @@
 
 namespace atom {
 
-class NativeWindowMac
-    : public NativeWindow,
-      public ui::AcceleratedWidgetMacNSView {
+class NativeWindowMac : public NativeWindow {
  public:
   NativeWindowMac(brightray::InspectableWebContents* inspectable_web_contents,
                   const mate::Dictionary& options,
@@ -93,12 +90,6 @@ class NativeWindowMac
   void SetVisibleOnAllWorkspaces(bool visible) override;
   bool IsVisibleOnAllWorkspaces() override;
 
-  // ui::AcceleratedWidgetMacNSView:
-  NSView* AcceleratedWidgetGetNSView() const override;
-  void AcceleratedWidgetGetVSyncParameters(
-      base::TimeTicks* timebase, base::TimeDelta* interval) const override;
-  void AcceleratedWidgetSwapCompleted() override;
-
   // Refresh the DraggableRegion views.
   void UpdateDraggableRegionViews() {
     UpdateDraggableRegionViews(draggable_regions_);

atom/browser/native_window_mac.mm

@@ -1197,19 +1197,6 @@ void NativeWindowMac::SetCollectionBehavior(bool on, NSUInteger flag) {
   SetMaximizable(was_maximizable);
 }
 
-NSView* atom::NativeWindowMac::AcceleratedWidgetGetNSView() const {
-  return [window_ contentView];
-}
-
-void atom::NativeWindowMac::AcceleratedWidgetGetVSyncParameters(
-    base::TimeTicks* timebase, base::TimeDelta* interval) const {
-  *timebase = base::TimeTicks();
-  *interval = base::TimeDelta();
-}
-
-void atom::NativeWindowMac::AcceleratedWidgetSwapCompleted() {
-}
-
 // static
 NativeWindow* NativeWindow::Create(
     brightray::InspectableWebContents* inspectable_web_contents,

atom/browser/osr/osr_render_widget_host_view.h

@@ -56,6 +56,9 @@ class AtomBeginFrameTimer;
 
 class OffScreenRenderWidgetHostView
     : public content::RenderWidgetHostViewBase,
+#if defined(OS_MACOSX)
+      public ui::AcceleratedWidgetMacNSView,
+#endif
       public ui::CompositorDelegate,
       public content::DelegatedFrameHostClient {
  public:
@@ -170,6 +173,14 @@ class OffScreenRenderWidgetHostView
   bool IsAutoResizeEnabled() const;
   void OnSetNeedsBeginFrames(bool enabled);
 
+#if defined(OS_MACOSX)
+  // ui::AcceleratedWidgetMacNSView:
+  NSView* AcceleratedWidgetGetNSView() const override;
+  void AcceleratedWidgetGetVSyncParameters(
+        base::TimeTicks* timebase, base::TimeDelta* interval) const override;
+  void AcceleratedWidgetSwapCompleted() override;
+#endif  // defined(OS_MACOSX)
+
   void OnBeginFrameTimerTick();
   void SendBeginFrame(base::TimeTicks frame_time,
                       base::TimeDelta vsync_period);
@@ -222,6 +233,8 @@ class OffScreenRenderWidgetHostView
   std::unique_ptr<AtomBeginFrameTimer> begin_frame_timer_;
 
 #if defined(OS_MACOSX)
+  NSWindow* window_;
+  CALayer* background_layer_;
   std::unique_ptr<content::BrowserCompositorMac> browser_compositor_;
 
   // Selected text on the renderer.

atom/browser/osr/osr_render_widget_host_view_mac.mm

@@ -6,8 +6,6 @@
 
 #import <Cocoa/Cocoa.h>
 
-#include "atom/browser/native_window_mac.h"
-
 #include "base/strings/utf_string_conversions.h"
 
 ui::AcceleratedWidgetMac*
@@ -17,6 +15,19 @@ atom::OffScreenRenderWidgetHostView::GetAcceleratedWidgetMac() const {
   return nullptr;
 }
 
+NSView* atom::OffScreenRenderWidgetHostView::AcceleratedWidgetGetNSView() const {
+  return [native_window_->GetNativeWindow() contentView];
+}
+
+void atom::OffScreenRenderWidgetHostView::AcceleratedWidgetGetVSyncParameters(
+    base::TimeTicks* timebase, base::TimeDelta* interval) const {
+  *timebase = base::TimeTicks();
+  *interval = base::TimeDelta();
+}
+
+void atom::OffScreenRenderWidgetHostView::AcceleratedWidgetSwapCompleted() {
+}
+
 void atom::OffScreenRenderWidgetHostView::SetActive(bool active) {
 }
 
@@ -63,8 +74,7 @@ void atom::OffScreenRenderWidgetHostView::CreatePlatformWidget() {
 
   compositor_.reset(browser_compositor_->compositor());
   compositor_->SetRootLayer(root_layer_.get());
-  browser_compositor_->accelerated_widget_mac()->SetNSView(
-    static_cast<atom::NativeWindowMac*>(native_window_));
+  browser_compositor_->accelerated_widget_mac()->SetNSView(this);
   browser_compositor_->compositor()->SetVisible(true);
 
   compositor_->SetLocksWillTimeOut(true);