Delete OnscreenDisplayClient and TopLevelDisplayClient.

cc/surfaces/surface_display_output_surface.cc

 // Copyright 2014 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 "cc/surfaces/surface_display_output_surface.h"
 
 #include "base/bind.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "cc/surfaces/display.h"
-#include "cc/surfaces/onscreen_display_client.h"
 #include "cc/surfaces/surface.h"
+#include "cc/surfaces/surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
 
 SurfaceDisplayOutputSurface::SurfaceDisplayOutputSurface(
     SurfaceManager* surface_manager,
-    SurfaceIdAllocator* allocator,
+    SurfaceIdAllocator* surface_id_allocator,
+    Display* display,
     scoped_refptr<ContextProvider> context_provider,
     scoped_refptr<ContextProvider> worker_context_provider)
     : OutputSurface(std::move(context_provider),
                     std::move(worker_context_provider),
                     nullptr),
-      display_client_(nullptr),
-      factory_(surface_manager, this),
-      allocator_(allocator) {
-  factory_.set_needs_sync_points(false);
+      surface_manager_(surface_manager),
+      surface_id_allocator_(surface_id_allocator),
+      display_(display),
+      factory_(surface_manager, this) {
+  DCHECK(thread_checker_.CalledOnValidThread());
   capabilities_.delegated_rendering = true;
   capabilities_.adjust_deadline_for_parent = true;
   capabilities_.can_force_reclaim_resources = true;
+
   // Display and SurfaceDisplayOutputSurface share a GL context, so sync
   // points aren't needed when passing resources between them.
   capabilities_.delegated_sync_points_required = false;
+  factory_.set_needs_sync_points(false);
 }
 
 SurfaceDisplayOutputSurface::SurfaceDisplayOutputSurface(
     SurfaceManager* surface_manager,
-    SurfaceIdAllocator* allocator,
+    SurfaceIdAllocator* surface_id_allocator,
+    Display* display,
     scoped_refptr<VulkanContextProvider> vulkan_context_provider)
     : OutputSurface(std::move(vulkan_context_provider)),
-      display_client_(nullptr),
-      factory_(surface_manager, this),
-      allocator_(allocator) {
+      surface_manager_(surface_manager),
+      surface_id_allocator_(surface_id_allocator),
+      display_(display),
+      factory_(surface_manager, this) {
+  DCHECK(thread_checker_.CalledOnValidThread());
   capabilities_.delegated_rendering = true;
   capabilities_.adjust_deadline_for_parent = true;
   capabilities_.can_force_reclaim_resources = true;
 }
 
 SurfaceDisplayOutputSurface::~SurfaceDisplayOutputSurface() {
+  DCHECK(thread_checker_.CalledOnValidThread());
   if (HasClient())
     DetachFromClient();
-  if (!surface_id_.is_null()) {
-    factory_.Destroy(surface_id_);
-  }
 }
 
 void SurfaceDisplayOutputSurface::SwapBuffers(CompositorFrame* frame) {
   gfx::Size frame_size =
       frame->delegated_frame_data->render_pass_list.back()->output_rect.size();
-  if (frame_size.IsEmpty() || frame_size != display_size_) {
-    if (!surface_id_.is_null()) {
-      factory_.Destroy(surface_id_);
+  if (frame_size.IsEmpty() || frame_size != last_swap_frame_size_) {
+    if (!delegated_surface_id_.is_null()) {
+      factory_.Destroy(delegated_surface_id_);
     }
-    surface_id_ = allocator_->GenerateId();
-    factory_.Create(surface_id_);
-    display_size_ = frame_size;
+    delegated_surface_id_ = surface_id_allocator_->GenerateId();
+    factory_.Create(delegated_surface_id_);
+    last_swap_frame_size_ = frame_size;
   }
-  display_client_->display()->SetSurfaceId(surface_id_,
-                                           frame->metadata.device_scale_factor);
+  display_->SetSurfaceId(delegated_surface_id_,
+                         frame->metadata.device_scale_factor);
 
   client_->DidSwapBuffers();
 
   std::unique_ptr<CompositorFrame> frame_copy(new CompositorFrame());
   frame->AssignTo(frame_copy.get());
   factory_.SubmitCompositorFrame(
-      surface_id_, std::move(frame_copy),
+      delegated_surface_id_, std::move(frame_copy),
       base::Bind(&SurfaceDisplayOutputSurface::SwapBuffersComplete,
                  base::Unretained(this)));
 }
 
 bool SurfaceDisplayOutputSurface::BindToClient(OutputSurfaceClient* client) {
-  DCHECK(client);
-  DCHECK(display_client_);
-  client_ = client;
-  factory_.manager()->RegisterSurfaceFactoryClient(allocator_->id_namespace(),
-                                                   this);
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (!OutputSurface::BindToClient(client))
+    return false;
 
+  // We want the Display's output surface to hear about lost context, and since
+  // this shares a context with it, we should not be listening for lost context
+  // callbacks on the context here.
+  if (context_provider())
+    context_provider()->SetLostContextCallback(base::Closure());
+
+  surface_manager_->RegisterSurfaceFactoryClient(
+      surface_id_allocator_->id_namespace(), this);
   // Avoid initializing GL context here, as this should be sharing the
   // Display's context.
-  return display_client_->Initialize();
+  bool init = display_->Initialize(this);
+  // Since this class shares its GL context with the Display, Initialize should
+  // not be possible to fail.
+  DCHECK(init);
+  return true;
 }
 
 void SurfaceDisplayOutputSurface::ForceReclaimResources() {
-  if (!surface_id_.is_null())
-    factory_.SubmitCompositorFrame(surface_id_, nullptr,
+  if (!delegated_surface_id_.is_null()) {
+    factory_.SubmitCompositorFrame(delegated_surface_id_, nullptr,
                                    SurfaceFactory::DrawCallback());
+  }
 }
 
 void SurfaceDisplayOutputSurface::DetachFromClient() {
   DCHECK(HasClient());
   // Unregister the SurfaceFactoryClient here instead of the dtor so that only
   // one client is alive for this namespace at any given time.
-  factory_.manager()->UnregisterSurfaceFactoryClient(
-      allocator_->id_namespace());
+  surface_manager_->UnregisterSurfaceFactoryClient(
+      surface_id_allocator_->id_namespace());
+  if (!delegated_surface_id_.is_null())
+    factory_.Destroy(delegated_surface_id_);
+
   OutputSurface::DetachFromClient();
-  DCHECK(!HasClient());
 }
 
 void SurfaceDisplayOutputSurface::ReturnResources(
     const ReturnedResourceArray& resources) {
   CompositorFrameAck ack;
   ack.resources = resources;
   if (client_)
     client_->ReclaimResources(&ack);
 }
 
 void SurfaceDisplayOutputSurface::SetBeginFrameSource(
     BeginFrameSource* begin_frame_source) {
   DCHECK(client_);
   client_->SetBeginFrameSource(begin_frame_source);
 }
 
+void SurfaceDisplayOutputSurface::DisplayOutputSurfaceLost() {
+  output_surface_lost_ = true;
+  DidLoseOutputSurface();
+}
+
+void SurfaceDisplayOutputSurface::DisplaySetMemoryPolicy(
+    const ManagedMemoryPolicy& policy) {
+  SetMemoryPolicy(policy);
+}
+
 void SurfaceDisplayOutputSurface::SwapBuffersComplete(SurfaceDrawStatus drawn) {
-  if (client_ && !display_client_->output_surface_lost())
+  // TODO(danakj): Why the lost check?
+  if (!output_surface_lost_)
     client_->DidSwapBuffersComplete();
 }
 
 }  // namespace cc