Mac: Move remote layer use to GpuOutputSurfaceMac

content/browser/compositor/gpu_output_surface_mac.mm

 // Copyright 2016 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/compositor/gpu_output_surface_mac.h"
 
 #include "components/display_compositor/compositor_overlay_candidate_validator.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/ipc/client/gpu_process_hosted_ca_layer_tree_params.h"
 #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
 #include "ui/base/cocoa/remote_layer_api.h"
 #include "ui/gfx/mac/io_surface.h"
 
 namespace content {
 
+struct GpuOutputSurfaceMac::RemoteLayers {
+  void UpdateLayers(CAContextID content_ca_context_id,
+                    CAContextID fullscreen_low_power_ca_context_id) {
+    if (content_ca_context_id) {
+      if ([content_layer contextId] != content_ca_context_id) {
+        content_layer.reset([[CALayerHost alloc] init]);
+        [content_layer setContextId:content_ca_context_id];
+        [content_layer
+            setAutoresizingMask:kCALayerMaxXMargin | kCALayerMaxYMargin];
+      }
+    } else {
+      content_layer.reset();
+    }
+
+    if (fullscreen_low_power_ca_context_id) {
+      if ([fullscreen_low_power_layer contextId] !=
+          fullscreen_low_power_ca_context_id) {
+        fullscreen_low_power_layer.reset([[CALayerHost alloc] init]);
+        [fullscreen_low_power_layer
+            setContextId:fullscreen_low_power_ca_context_id];
+      }
+    } else {
+      fullscreen_low_power_layer.reset();
+    }
+  }
+
+  base::scoped_nsobject<CALayerHost> content_layer;
+  base::scoped_nsobject<CALayerHost> fullscreen_low_power_layer;
+};
+
 GpuOutputSurfaceMac::GpuOutputSurfaceMac(
     scoped_refptr<ContextProviderCommandBuffer> context,
     gpu::SurfaceHandle surface_handle,
     scoped_refptr<ui::CompositorVSyncManager> vsync_manager,
     base::SingleThreadTaskRunner* task_runner,
     std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
         overlay_candidate_validator,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager)
     : GpuSurfacelessBrowserCompositorOutputSurface(
           std::move(context),
           surface_handle,
           std::move(vsync_manager),
           task_runner,
           std::move(overlay_candidate_validator),
           GL_TEXTURE_RECTANGLE_ARB,
           GL_RGBA,
-          gpu_memory_buffer_manager) {}
+          gpu_memory_buffer_manager),
+      remote_layers_(new RemoteLayers) {}
 
 GpuOutputSurfaceMac::~GpuOutputSurfaceMac() {}
 
 void GpuOutputSurfaceMac::SwapBuffers(cc::CompositorFrame* frame) {
   GpuSurfacelessBrowserCompositorOutputSurface::SwapBuffers(frame);
 
   if (should_show_frames_state_ ==
       SHOULD_NOT_SHOW_FRAMES_NO_SWAP_AFTER_SUSPENDED) {
     should_show_frames_state_ = SHOULD_SHOW_FRAMES;
   }
 }
 
 void GpuOutputSurfaceMac::OnGpuSwapBuffersCompleted(
     const std::vector<ui::LatencyInfo>& latency_info,
     gfx::SwapResult result,
     const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) {
+  remote_layers_->UpdateLayers(params_mac->ca_context_id,
+                               params_mac->fullscreen_low_power_ca_context_id);
   if (should_show_frames_state_ == SHOULD_SHOW_FRAMES) {
-    gfx::AcceleratedWidget native_widget =
+    ui::AcceleratedWidgetMac* widget = ui::AcceleratedWidgetMac::Get(
         content::GpuSurfaceTracker::Get()->AcquireNativeWidget(
-            params_mac->surface_handle);
-    ui::AcceleratedWidgetMacGotFrame(
-        native_widget, params_mac->ca_context_id,
-        params_mac->fullscreen_low_power_ca_context_valid,
-        params_mac->fullscreen_low_power_ca_context_id, params_mac->io_surface,
-        params_mac->pixel_size, params_mac->scale_factor, nullptr, nullptr);
+            params_mac->surface_handle));
+    if (widget) {
+      if (remote_layers_->content_layer) {
+        widget->GotCALayerFrame(
+            base::scoped_nsobject<CALayer>(remote_layers_->content_layer.get(),
+                                           base::scoped_policy::RETAIN),
+            params_mac->fullscreen_low_power_ca_context_valid,
+            base::scoped_nsobject<CALayer>(
+                remote_layers_->fullscreen_low_power_layer.get(),
+                base::scoped_policy::RETAIN),
+            params_mac->pixel_size, params_mac->scale_factor);
+      } else {
+        widget->GotIOSurfaceFrame(params_mac->io_surface,
+                                  params_mac->pixel_size,
+                                  params_mac->scale_factor);
+      }
+    }
   }
   GpuSurfacelessBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
       latency_info, result, params_mac);
 }
 
 void GpuOutputSurfaceMac::SetSurfaceSuspendedForRecycle(bool suspended) {
   if (suspended) {
     // It may be that there are frames in-flight from the GPU process back to
     // the browser. Make sure that these frames are not displayed by ignoring
     // them in GpuProcessHostUIShim, until the browser issues a SwapBuffers for
@@ skipping 14 matching lines @@
           SHOULD_NOT_SHOW_FRAMES_NO_SWAP_AFTER_SUSPENDED;
     }
   }
 }
 
 bool GpuOutputSurfaceMac::SurfaceIsSuspendForRecycle() const {
   return should_show_frames_state_ == SHOULD_NOT_SHOW_FRAMES_SUSPENDED;
 }
 
 }  // namespace content