aura: Remove old GL paths from RenderWidgetHostViewAura.

content/browser/renderer_host/render_widget_host_view_aura.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_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 304 matching lines @@
 
   if (event.type() == ui::ET_GESTURE_BEGIN) {
     const ui::GestureEvent& gesture =
         static_cast<const ui::GestureEvent&>(event);
     return gesture.details().touch_points() == 1;
   }
 
   return false;
 }
 
-// Swap ack for the renderer when kCompositeToMailbox is enabled.
-void SendCompositorFrameAck(
-    int32 route_id,
-    uint32 output_surface_id,
-    int renderer_host_id,
-    const gpu::Mailbox& received_mailbox,
-    const gfx::Size& received_size,
-    bool skip_frame,
-    const scoped_refptr<ui::Texture>& texture_to_produce) {
-  cc::CompositorFrameAck ack;
-  ack.gl_frame_data.reset(new cc::GLFrameData());
-  DCHECK(!texture_to_produce.get() || !skip_frame);
-  if (texture_to_produce.get()) {
-    GLHelper* gl_helper = ImageTransportFactory::GetInstance()->GetGLHelper();
-    ack.gl_frame_data->mailbox = texture_to_produce->Produce();
-    ack.gl_frame_data->size = texture_to_produce->size();
-    ack.gl_frame_data->sync_point =
-        gl_helper ? gl_helper->InsertSyncPoint() : 0;
-  } else if (skip_frame) {
-    // Skip the frame, i.e. tell the producer to reuse the same buffer that
-    // we just received.
-    ack.gl_frame_data->size = received_size;
-    ack.gl_frame_data->mailbox = received_mailbox;
-  }
-
-  RenderWidgetHostImpl::SendSwapCompositorFrameAck(
-      route_id, output_surface_id, renderer_host_id, ack);
-}
-
-void AcknowledgeBufferForGpu(
-    int32 route_id,
-    int gpu_host_id,
-    const gpu::Mailbox& received_mailbox,
-    bool skip_frame,
-    const scoped_refptr<ui::Texture>& texture_to_produce) {
-  AcceleratedSurfaceMsg_BufferPresented_Params ack;
-  uint32 sync_point = 0;
-  DCHECK(!texture_to_produce.get() || !skip_frame);
-  if (texture_to_produce.get()) {
-    GLHelper* gl_helper = ImageTransportFactory::GetInstance()->GetGLHelper();
-    ack.mailbox = texture_to_produce->Produce();
-    sync_point = gl_helper ? gl_helper->InsertSyncPoint() : 0;
-  } else if (skip_frame) {
-    ack.mailbox = received_mailbox;
-    ack.sync_point = 0;
-  }
-
-  ack.sync_point = sync_point;
-  RenderWidgetHostImpl::AcknowledgeBufferPresent(
-      route_id, gpu_host_id, ack);
-}
-
 }  // namespace
 
 // We need to watch for mouse events outside a Web Popup or its parent
 // and dismiss the popup for certain events.
 class RenderWidgetHostViewAura::EventFilterForPopupExit
     : public ui::EventHandler {
  public:
   explicit EventFilterForPopupExit(RenderWidgetHostViewAura* rwhva)
       : rwhva_(rwhva) {
     DCHECK(rwhva_);
@@ skipping 86 matching lines @@
       popup_child_host_view_(NULL),
       is_loading_(false),
       text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
       text_input_mode_(ui::TEXT_INPUT_MODE_DEFAULT),
       can_compose_inline_(true),
       has_composition_text_(false),
       accept_return_character_(false),
       last_output_surface_id_(0),
       pending_delegated_ack_count_(0),
       skipped_frames_(false),
-      last_swapped_surface_scale_factor_(1.f),
+      last_swapped_software_frame_scale_factor_(1.f),
       paint_canvas_(NULL),
       synthetic_move_sent_(false),
-      accelerated_compositing_state_changed_(false),
       can_lock_compositor_(YES),
       cursor_visibility_state_in_renderer_(UNKNOWN),
       touch_editing_client_(NULL),
       delegated_frame_evictor_(new DelegatedFrameEvictor(this)),
       weak_ptr_factory_(this) {
   host_->SetView(this);
   window_observer_.reset(new WindowObserver(this));
   aura::client::SetTooltipText(window_, &tooltip_);
   aura::client::SetActivationDelegate(window_, this);
   aura::client::SetActivationChangeObserver(window_, this);
@@ skipping 115 matching lines @@
   delegated_frame_evictor_->SetVisible(true);
 
   aura::Window* root = window_->GetRootWindow();
   if (root) {
     aura::client::CursorClient* cursor_client =
         aura::client::GetCursorClient(root);
     if (cursor_client)
       NotifyRendererOfCursorVisibilityState(cursor_client->IsCursorVisible());
   }
 
-  if (!current_surface_.get() && host_->is_accelerated_compositing_active() &&
+  if (host_->is_accelerated_compositing_active() &&
       !released_front_lock_.get()) {
     ui::Compositor* compositor = GetCompositor();
     if (compositor)
       released_front_lock_ = compositor->GetCompositorLock();
   }
 
 #if defined(OS_WIN)
   if (legacy_render_widget_host_HWND_) {
     // Reparent the legacy Chrome_RenderWidgetHostHWND window to the parent
     // window before reparenting any plugins. This ensures that the plugin
@@ skipping 91 matching lines @@
 #else
   if (resize_lock_)
     return false;
 
   if (host_->should_auto_resize())
     return false;
   if (!host_->is_accelerated_compositing_active())
     return false;
 
   gfx::Size desired_size = window_->bounds().size();
-  if (desired_size == current_frame_size_)
+  if (desired_size == current_frame_size_in_dip_)
     return false;
 
   aura::WindowTreeHost* host = window_->GetHost();
   if (!host)
     return false;
 
   ui::Compositor* compositor = host->compositor();
   if (!compositor)
     return false;
 
@@ skipping 218 matching lines @@
     const gfx::Range& range,
     const std::vector<gfx::Rect>& character_bounds) {
   composition_character_bounds_ = character_bounds;
 }
 
 void RenderWidgetHostViewAura::DidUpdateBackingStore(
     const gfx::Rect& scroll_rect,
     const gfx::Vector2d& scroll_delta,
     const std::vector<gfx::Rect>& copy_rects,
     const std::vector<ui::LatencyInfo>& latency_info) {
-  if (accelerated_compositing_state_changed_)
-    UpdateExternalTexture();
-
   for (size_t i = 0; i < latency_info.size(); i++)
     software_latency_info_.push_back(latency_info[i]);
 
   // Use the state of the RenderWidgetHost and not the window as the two may
   // differ. In particular if the window is hidden but the renderer isn't and we
   // ignore the update and the window is made visible again the layer isn't
   // marked as dirty and we show the wrong thing.
-  // We do this after UpdateExternalTexture() so that when we become visible
-  // we're not drawing a stale texture.
   if (host_->is_hidden())
     return;
 
   gfx::Rect clip_rect;
   if (paint_canvas_) {
     SkRect sk_clip_rect;
     if (paint_canvas_->sk_canvas()->getClipBounds(&sk_clip_rect))
       clip_rect = gfx::ToEnclosingRect(gfx::SkRectToRectF(sk_clip_rect));
   }
 
@@ skipping 200 matching lines @@
     scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) {
   frame_subscriber_ = subscriber.Pass();
 }
 
 void RenderWidgetHostViewAura::EndFrameSubscription() {
   idle_frame_subscriber_textures_.clear();
   frame_subscriber_.reset();
 }
 
 void RenderWidgetHostViewAura::OnAcceleratedCompositingStateChange() {
-  // Delay processing the state change until we either get a software frame if
-  // switching to software mode or receive a buffers swapped notification
-  // if switching to accelerated mode.
-  // Sometimes (e.g. on a page load) the renderer will spuriously disable then
-  // re-enable accelerated compositing, causing us to flash.
-  // TODO(piman): factor the enable/disable accelerated compositing message into
-  // the UpdateRect/AcceleratedSurfaceBuffersSwapped messages so that we have
-  // fewer inconsistent temporary states.
-  accelerated_compositing_state_changed_ = true;
 }
 
 void RenderWidgetHostViewAura::AcceleratedSurfaceInitialized(int host_id,
                                                              int route_id) {
 }
 
 bool RenderWidgetHostViewAura::ShouldSkipFrame(gfx::Size size_in_dip) const {
   if (can_lock_compositor_ == NO_PENDING_RENDERER_FRAME ||
       can_lock_compositor_ == NO_PENDING_COMMIT ||
       !resize_lock_.get())
@@ skipping 34 matching lines @@
     }
     if (legacy_render_widget_host_HWND_) {
       legacy_render_widget_host_HWND_->SetBounds(
           window_->GetBoundsInRootWindow());
     }
   }
 #endif
 }
 
 void RenderWidgetHostViewAura::CheckResizeLock() {
-  if (!resize_lock_ || resize_lock_->expected_size() != current_frame_size_)
+  if (!resize_lock_ ||
+      resize_lock_->expected_size() != current_frame_size_in_dip_)
     return;
 
   // Since we got the size we were looking for, unlock the compositor. But delay
   // the release of the lock until we've kicked a frame with the new texture, to
   // avoid resizing the UI before we have a chance to draw a "good" frame.
   resize_lock_->UnlockCompositor();
   ui::Compositor* compositor = GetCompositor();
   if (compositor) {
     if (!compositor->HasObserver(this))
       compositor->AddObserver(this);
   }
 }
 
-void RenderWidgetHostViewAura::UpdateExternalTexture() {
-  // Delay processing accelerated compositing state change till here where we
-  // act upon the state change. (Clear the external texture if switching to
-  // software mode or set the external texture if going to accelerated mode).
-  if (accelerated_compositing_state_changed_)
-    accelerated_compositing_state_changed_ = false;
-
-  bool is_compositing_active = host_->is_accelerated_compositing_active();
-  if (is_compositing_active && current_surface_.get()) {
-    window_->layer()->SetExternalTexture(current_surface_.get());
-    current_frame_size_ = ConvertSizeToDIP(
-        current_surface_->device_scale_factor(), current_surface_->size());
-    CheckResizeLock();
-    software_frame_manager_->DiscardCurrentFrame();
-  } else if (is_compositing_active &&
-             software_frame_manager_->HasCurrentFrame()) {
-    cc::TextureMailbox mailbox;
-    scoped_ptr<cc::SingleReleaseCallback> callback;
-    software_frame_manager_->GetCurrentFrameMailbox(&mailbox, &callback);
-    window_->layer()->SetTextureMailbox(mailbox,
-                                        callback.Pass(),
-                                        last_swapped_surface_scale_factor_);
-    current_frame_size_ = ConvertSizeToDIP(last_swapped_surface_scale_factor_,
-                                           mailbox.shared_memory_size());
-    CheckResizeLock();
-  } else {
-    window_->layer()->SetShowPaintedContent();
-    resize_lock_.reset();
-    host_->WasResized();
-    software_frame_manager_->DiscardCurrentFrame();
-  }
-}
-
-bool RenderWidgetHostViewAura::SwapBuffersPrepare(
-    const gfx::Rect& surface_rect,
-    float surface_scale_factor,
-    const gfx::Rect& damage_rect,
-    const gpu::Mailbox& mailbox,
-    const BufferPresentedCallback& ack_callback) {
-  if (last_swapped_surface_size_ != surface_rect.size()) {
-    // The surface could have shrunk since we skipped an update, in which
-    // case we can expect a full update.
-    DLOG_IF(ERROR, damage_rect != surface_rect) << "Expected full damage rect";
-    skipped_damage_.setEmpty();
-    last_swapped_surface_size_ = surface_rect.size();
-    last_swapped_surface_scale_factor_ = surface_scale_factor;
-  }
-
-  if (ShouldSkipFrame(ConvertSizeToDIP(surface_scale_factor,
-                                       surface_rect.size())) ||
-      mailbox.IsZero()) {
-    skipped_damage_.op(RectToSkIRect(damage_rect), SkRegion::kUnion_Op);
-    ack_callback.Run(true, scoped_refptr<ui::Texture>());
-    return false;
-  }
-
-  ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-  current_surface_ =
-      factory->CreateTransportClient(surface_scale_factor);
-  if (!current_surface_.get()) {
-    LOG(ERROR) << "Failed to create ImageTransport texture";
-    ack_callback.Run(true, scoped_refptr<ui::Texture>());
-    return false;
-  }
-
-  current_surface_->Consume(mailbox, surface_rect.size());
-  released_front_lock_ = NULL;
-  UpdateExternalTexture();
-
-  return true;
-}
-
-void RenderWidgetHostViewAura::SwapBuffersCompleted(
-    const BufferPresentedCallback& ack_callback,
-    const scoped_refptr<ui::Texture>& texture_to_return) {
-  ui::Compositor* compositor = GetCompositor();
-  if (!compositor) {
-    ack_callback.Run(false, texture_to_return);
-  } else {
-    AddOnCommitCallbackAndDisableLocks(
-        base::Bind(ack_callback, false, texture_to_return));
-  }
-
-  DidReceiveFrameFromRenderer();
-}
-
 void RenderWidgetHostViewAura::DidReceiveFrameFromRenderer() {
   if (frame_subscriber() && CanCopyToVideoFrame()) {
     const base::TimeTicks present_time = base::TimeTicks::Now();
     scoped_refptr<media::VideoFrame> frame;
     RenderWidgetHostViewFrameSubscriber::DeliverFrameCallback callback;
     if (frame_subscriber()->ShouldCaptureFrame(present_time,
                                                &frame, &callback)) {
       CopyFromCompositingSurfaceToVideoFrame(
-          gfx::Rect(current_frame_size_),
+          gfx::Rect(current_frame_size_in_dip_),
           frame,
           base::Bind(callback, present_time));
     }
   }
 }
 
 #if defined(OS_WIN)
 void RenderWidgetHostViewAura::UpdateConstrainedWindowRects(
     const std::vector<gfx::Rect>& rects) {
   // Check this before setting constrained_rects_, so that next time they're set
@@ skipping 12 matching lines @@
   params.cutout_rects = constrained_rects_;
   params.geometry = &plugin_window_moves_;
   LPARAM lparam = reinterpret_cast<LPARAM>(&params);
   EnumChildWindows(parent, SetCutoutRectsCallback, lparam);
 }
 #endif
 
 void RenderWidgetHostViewAura::AcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params_in_pixel,
     int gpu_host_id) {
-  BufferPresentedCallback ack_callback = base::Bind(
-      &AcknowledgeBufferForGpu,
-      params_in_pixel.route_id,
-      gpu_host_id,
-      params_in_pixel.mailbox);
-  BuffersSwapped(params_in_pixel.size,
-                 gfx::Rect(params_in_pixel.size),
-                 params_in_pixel.scale_factor,
-                 params_in_pixel.mailbox,
-                 params_in_pixel.latency_info,
-                 ack_callback);
+  // Oldschool composited mode is no longer supported.
 }
 
 void RenderWidgetHostViewAura::SwapDelegatedFrame(
     uint32 output_surface_id,
     scoped_ptr<cc::DelegatedFrameData> frame_data,
     float frame_device_scale_factor,
     const std::vector<ui::LatencyInfo>& latency_info) {
   DCHECK_NE(0u, frame_data->render_pass_list.size());
 
   cc::RenderPass* root_pass = frame_data->render_pass_list.back();
@@ skipping 59 matching lines @@
     if (!resource_collection_) {
       resource_collection_ = new cc::DelegatedFrameResourceCollection;
       resource_collection_->SetClient(this);
     }
     // If the physical frame size changes, we need a new |frame_provider_|. If
     // the physical frame size is the same, but the size in DIP changed, we
     // need to adjust the scale at which the frames will be drawn, and we do
     // this by making a new |frame_provider_| also to ensure the scale change
     // is presented in sync with the new frame content.
     if (!frame_provider_.get() || frame_size != frame_provider_->frame_size() ||
-        frame_size_in_dip != current_frame_size_) {
+        frame_size_in_dip != current_frame_size_in_dip_) {
       frame_provider_ = new cc::DelegatedFrameProvider(
           resource_collection_.get(), frame_data.Pass());
       window_->layer()->SetShowDelegatedContent(frame_provider_.get(),
                                                 frame_size_in_dip);
     } else {
       frame_provider_->SetFrameData(frame_data.Pass());
     }
   }
   released_front_lock_ = NULL;
-  current_frame_size_ = frame_size_in_dip;
+  current_frame_size_in_dip_ = frame_size_in_dip;
   CheckResizeLock();
 
   window_->SchedulePaintInRect(damage_rect_in_dip);
 
   pending_delegated_ack_count_++;
 
   ui::Compositor* compositor = GetCompositor();
   if (!compositor) {
     SendDelegatedFrameAck(output_surface_id);
   } else {
@@ skipping 68 matching lines @@
   if (!software_frame_manager_->SwapToNewFrame(
           output_surface_id,
           frame_data.get(),
           frame_device_scale_factor,
           host_->GetProcess()->GetHandle())) {
     ReleaseSoftwareFrame(output_surface_id, frame_data->id);
     SendSoftwareFrameAck(output_surface_id);
     return;
   }
 
-  if (last_swapped_surface_size_ != frame_size) {
+  frame_provider_ = NULL;
+  delegated_frame_evictor_->DiscardedFrame();
+
+  if (last_swapped_software_frame_size_ != frame_size) {
     DLOG_IF(ERROR, damage_rect != gfx::Rect(frame_size))
         << "Expected full damage rect";
   }
-  last_swapped_surface_size_ = frame_size;
-  last_swapped_surface_scale_factor_ = frame_device_scale_factor;
+  last_swapped_software_frame_size_ = frame_size;
+  last_swapped_software_frame_scale_factor_ = frame_device_scale_factor;
 
   cc::TextureMailbox mailbox;
   scoped_ptr<cc::SingleReleaseCallback> callback;
   software_frame_manager_->GetCurrentFrameMailbox(&mailbox, &callback);
   DCHECK(mailbox.IsSharedMemory());
-  current_frame_size_ = frame_size_in_dip;
+  current_frame_size_in_dip_ = frame_size_in_dip;
 
   released_front_lock_ = NULL;
   CheckResizeLock();
   window_->layer()->SetTextureMailbox(mailbox,
                                       callback.Pass(),
                                       frame_device_scale_factor);
   window_->SchedulePaintInRect(
       ConvertRectToDIP(frame_device_scale_factor, damage_rect));
 
   ui::Compositor* compositor = GetCompositor();
@@ skipping 52 matching lines @@
 
 void RenderWidgetHostViewAura::OnSwapCompositorFrame(
     uint32 output_surface_id,
     scoped_ptr<cc::CompositorFrame> frame) {
   TRACE_EVENT0("content", "RenderWidgetHostViewAura::OnSwapCompositorFrame");
   if (frame->delegated_frame_data) {
     SwapDelegatedFrame(output_surface_id,
                        frame->delegated_frame_data.Pass(),
                        frame->metadata.device_scale_factor,
                        frame->metadata.latency_info);
-    return;
-  }
-
-  if (frame->software_frame_data) {
+  } else if (frame->software_frame_data) {
     SwapSoftwareFrame(output_surface_id,
                       frame->software_frame_data.Pass(),
                       frame->metadata.device_scale_factor,
                       frame->metadata.latency_info);
-    return;
   }
-
-  if (!frame->gl_frame_data || frame->gl_frame_data->mailbox.IsZero())
-    return;
-
-  BufferPresentedCallback ack_callback = base::Bind(
-      &SendCompositorFrameAck,
-      host_->GetRoutingID(), output_surface_id, host_->GetProcess()->GetID(),
-      frame->gl_frame_data->mailbox, frame->gl_frame_data->size);
-
-  if (!frame->gl_frame_data->sync_point) {
-    LOG(ERROR) << "CompositorFrame without sync point. Skipping frame...";
-    ack_callback.Run(true, scoped_refptr<ui::Texture>());
-    return;
-  }
-
-  GLHelper* gl_helper = ImageTransportFactory::GetInstance()->GetGLHelper();
-  gl_helper->WaitSyncPoint(frame->gl_frame_data->sync_point);
-
-  BuffersSwapped(frame->gl_frame_data->size,
-                 frame->gl_frame_data->sub_buffer_rect,
-                 frame->metadata.device_scale_factor,
-                 frame->gl_frame_data->mailbox,
-                 frame->metadata.latency_info,
-                 ack_callback);
 }
 
 #if defined(OS_WIN)
 void RenderWidgetHostViewAura::SetParentNativeViewAccessible(
     gfx::NativeViewAccessible accessible_parent) {
   if (GetBrowserAccessibilityManager()) {
     GetBrowserAccessibilityManager()->ToBrowserAccessibilityManagerWin()
         ->set_parent_iaccessible(accessible_parent);
   }
 }
 
 gfx::NativeViewId RenderWidgetHostViewAura::GetParentForWindowlessPlugin()
     const {
   if (legacy_render_widget_host_HWND_) {
     return reinterpret_cast<gfx::NativeViewId>(
         legacy_render_widget_host_HWND_->hwnd());
   }
   return NULL;
 }
 #endif
 
-void RenderWidgetHostViewAura::BuffersSwapped(
-    const gfx::Size& surface_size,
-    const gfx::Rect& damage_rect,
-    float surface_scale_factor,
-    const gpu::Mailbox& mailbox,
-    const std::vector<ui::LatencyInfo>& latency_info,
-    const BufferPresentedCallback& ack_callback) {
-  scoped_refptr<ui::Texture> previous_texture(current_surface_);
-  const gfx::Rect surface_rect = gfx::Rect(surface_size);
-  software_frame_manager_->DiscardCurrentFrame();
-
-  if (!SwapBuffersPrepare(surface_rect,
-                          surface_scale_factor,
-                          damage_rect,
-                          mailbox,
-                          ack_callback)) {
-    return;
-  }
-
-  SkRegion damage(RectToSkIRect(damage_rect));
-  if (!skipped_damage_.isEmpty()) {
-    damage.op(skipped_damage_, SkRegion::kUnion_Op);
-    skipped_damage_.setEmpty();
-  }
-
-  DCHECK(surface_rect.Contains(SkIRectToRect(damage.getBounds())));
-  ui::Texture* current_texture = current_surface_.get();
-
-  const gfx::Size surface_size_in_pixel = surface_size;
-  DLOG_IF(ERROR, previous_texture.get() &&
-      previous_texture->size() != current_texture->size() &&
-      SkIRectToRect(damage.getBounds()) != surface_rect) <<
-      "Expected full damage rect after size change";
-  if (previous_texture.get() && !previous_damage_.isEmpty() &&
-      previous_texture->size() == current_texture->size()) {
-    ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-    GLHelper* gl_helper = factory->GetGLHelper();
-    gl_helper->CopySubBufferDamage(
-        current_texture->PrepareTexture(),
-        previous_texture->PrepareTexture(),
-        damage,
-        previous_damage_);
-  }
-  previous_damage_ = damage;
-
-  ui::Compositor* compositor = GetCompositor();
-  if (compositor) {
-    // Co-ordinates come in OpenGL co-ordinate space.
-    // We need to convert to layer space.
-    gfx::Rect rect_to_paint =
-        ConvertRectToDIP(surface_scale_factor,
-                         gfx::Rect(damage_rect.x(),
-                                   surface_size_in_pixel.height() -
-                                       damage_rect.y() - damage_rect.height(),
-                                   damage_rect.width(),
-                                   damage_rect.height()));
-
-    // Damage may not have been DIP aligned, so inflate damage to compensate
-    // for any round-off error.
-    rect_to_paint.Inset(-1, -1);
-    rect_to_paint.Intersect(window_->bounds());
-
-    window_->SchedulePaintInRect(rect_to_paint);
-    for (size_t i = 0; i < latency_info.size(); i++)
-      compositor->SetLatencyInfo(latency_info[i]);
-  }
-
-  SwapBuffersCompleted(ack_callback, previous_texture);
-}
-
 void RenderWidgetHostViewAura::AcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params_in_pixel,
     int gpu_host_id) {
-  gfx::Rect damage_rect(params_in_pixel.x,
-                        params_in_pixel.y,
-                        params_in_pixel.width,
-                        params_in_pixel.height);
-  BufferPresentedCallback ack_callback =
-      base::Bind(&AcknowledgeBufferForGpu,
-                 params_in_pixel.route_id,
-                 gpu_host_id,
-                 params_in_pixel.mailbox);
-  BuffersSwapped(params_in_pixel.surface_size,
-                 damage_rect,
-                 params_in_pixel.surface_scale_factor,
-                 params_in_pixel.mailbox,
-                 params_in_pixel.latency_info,
-                 ack_callback);
+  // Oldschool composited mode is no longer supported.
 }
 
 void RenderWidgetHostViewAura::AcceleratedSurfaceSuspend() {
 }
 
 void RenderWidgetHostViewAura::AcceleratedSurfaceRelease() {
-  // This really tells us to release the frontbuffer.
-  if (current_surface_.get()) {
-    ui::Compositor* compositor = GetCompositor();
-    if (compositor) {
-      // We need to wait for a commit to clear to guarantee that all we
-      // will not issue any more GL referencing the previous surface.
-      AddOnCommitCallbackAndDisableLocks(
-          base::Bind(&RenderWidgetHostViewAura::SetSurfaceNotInUseByCompositor,
-                     AsWeakPtr(),
-                     current_surface_));  // Hold a ref so the texture will not
-                                          // get deleted until after commit.
-    }
-    current_surface_ = NULL;
-    UpdateExternalTexture();
-  }
 }
 
 bool RenderWidgetHostViewAura::HasAcceleratedSurface(
     const gfx::Size& desired_size) {
   // Aura doesn't use GetBackingStore for accelerated pages, so it doesn't
   // matter what is returned here as GetBackingStore is the only caller of this
   // method. TODO(jbates) implement this if other Aura code needs it.
   return false;
 }
 
@@ skipping 851 matching lines @@
 }
 
 void RenderWidgetHostViewAura::GetHitTestMask(gfx::Path* mask) const {
 }
 
 void RenderWidgetHostViewAura::DidRecreateLayer(ui::Layer *old_layer,
                                                 ui::Layer *new_layer) {
   float mailbox_scale_factor;
   cc::TextureMailbox old_mailbox =
       old_layer->GetTextureMailbox(&mailbox_scale_factor);
-  scoped_refptr<ui::Texture> old_texture = old_layer->external_texture();
   // The new_layer is the one that will be used by our Window, so that's the one
   // that should keep our texture. old_layer will be returned to the
   // RecreateLayer caller, and should have a copy.
-  if (old_texture.get()) {
-    ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-    GLHelper* gl_helper = factory->GetGLHelper();
-    scoped_refptr<ui::Texture> new_texture;
-    if (host_->is_accelerated_compositing_active() &&
-        gl_helper && current_surface_.get()) {
-      GLuint texture_id =
-          gl_helper->CopyTexture(current_surface_->PrepareTexture(),
-                                 current_surface_->size());
-      if (texture_id) {
-        new_texture = factory->CreateOwnedTexture(
-          current_surface_->size(),
-          current_surface_->device_scale_factor(), texture_id);
-      }
-    }
-    if (new_texture.get())
-      old_layer->SetExternalTexture(new_texture.get());
-    else
-      old_layer->SetShowPaintedContent();
-    new_layer->SetExternalTexture(old_texture.get());
-  } else if (old_mailbox.IsSharedMemory()) {
+  if (old_mailbox.IsSharedMemory()) {
     base::SharedMemory* old_buffer = old_mailbox.shared_memory();
     const size_t size = old_mailbox.shared_memory_size_in_bytes();
 
     scoped_ptr<base::SharedMemory> new_buffer(new base::SharedMemory);
     new_buffer->CreateAndMapAnonymous(size);
 
     if (old_buffer->memory() && new_buffer->memory()) {
       memcpy(new_buffer->memory(), old_buffer->memory(), size);
       base::SharedMemory* new_buffer_raw_ptr = new_buffer.get();
       scoped_ptr<cc::SingleReleaseCallback> callback =
           cc::SingleReleaseCallback::Create(base::Bind(MailboxReleaseCallback,
                                                        Passed(&new_buffer)));
       cc::TextureMailbox new_mailbox(new_buffer_raw_ptr,
                                      old_mailbox.shared_memory_size());
       new_layer->SetTextureMailbox(new_mailbox,
                                    callback.Pass(),
                                    mailbox_scale_factor);
     }
   } else if (frame_provider_.get()) {
     new_layer->SetShowDelegatedContent(frame_provider_.get(),
-                                       current_frame_size_);
+                                       current_frame_size_in_dip_);
   }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, ui::EventHandler implementation:
 
 void RenderWidgetHostViewAura::OnKeyEvent(ui::KeyEvent* event) {
   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnKeyEvent");
   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
     return;
@@ skipping 415 matching lines @@
     uint32 output_surface_id, unsigned frame_id) {
   ReleaseSoftwareFrame(output_surface_id, frame_id);
 }
 
 void RenderWidgetHostViewAura::ReleaseReferencesToSoftwareFrame() {
   ui::Compositor* compositor = GetCompositor();
   if (compositor) {
     AddOnCommitCallbackAndDisableLocks(base::Bind(
         &RenderWidgetHostViewAura::SendReclaimSoftwareFrames, AsWeakPtr()));
   }
-  UpdateExternalTexture();
+  window_->layer()->SetShowPaintedContent();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, ui::CompositorObserver implementation:
 
 void RenderWidgetHostViewAura::OnCompositingDidCommit(
     ui::Compositor* compositor) {
   if (can_lock_compositor_ == NO_PENDING_COMMIT) {
     can_lock_compositor_ = YES;
     if (resize_lock_.get() && resize_lock_->GrabDeferredLock())
       can_lock_compositor_ = YES_DID_LOCK;
   }
   RunOnCommitCallbacks();
-  if (resize_lock_ && resize_lock_->expected_size() == current_frame_size_) {
+  if (resize_lock_ &&
+      resize_lock_->expected_size() == current_frame_size_in_dip_) {
     resize_lock_.reset();
     host_->WasResized();
     // We may have had a resize while we had the lock (e.g. if the lock expired,
     // or if the UI still gave us some resizes), so make sure we grab a new lock
     // if necessary.
     MaybeCreateResizeLock();
   }
 }
 
 void RenderWidgetHostViewAura::OnCompositingStarted(
@@ skipping 74 matching lines @@
 
 void RenderWidgetHostViewAura::FatalAccessibilityTreeError() {
   host_->FatalAccessibilityTreeError();
   SetBrowserAccessibilityManager(NULL);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, ImageTransportFactoryObserver implementation:
 
 void RenderWidgetHostViewAura::OnLostResources() {
-  current_surface_ = NULL;
-  UpdateExternalTexture();
-
+  if (frame_provider_.get())
+    EvictDelegatedFrame();
   idle_frame_subscriber_textures_.clear();
   yuv_readback_pipeline_.reset();
 
-  // Make sure all ImageTransportClients are deleted now that the context those
-  // are using is becoming invalid. This sends pending ACKs and needs to happen
-  // after calling UpdateExternalTexture() which syncs with the impl thread.
-  RunOnCommitCallbacks();
   host_->ScheduleComposite();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, private:
 
 RenderWidgetHostViewAura::~RenderWidgetHostViewAura() {
   if (touch_editing_client_)
     touch_editing_client_->OnViewDestroyed();
 
@@ skipping 186 matching lines @@
 void RenderWidgetHostViewAura::AddedToRootWindow() {
   window_->GetHost()->AddObserver(this);
   UpdateScreenInfo(window_);
 
   aura::client::CursorClient* cursor_client =
       aura::client::GetCursorClient(window_->GetRootWindow());
   if (cursor_client) {
     cursor_client->AddObserver(this);
     NotifyRendererOfCursorVisibilityState(cursor_client->IsCursorVisible());
   }
-  if (current_surface_.get())
-    UpdateExternalTexture();
   if (HasFocus()) {
     ui::InputMethod* input_method = GetInputMethod();
     if (input_method)
       input_method->SetFocusedTextInputClient(this);
   }
 
 #if defined(OS_WIN)
   // The parent may have changed here. Ensure that the legacy window is
   // reparented accordingly.
   if (legacy_render_widget_host_HWND_)
@@ skipping 11 matching lines @@
 
 void RenderWidgetHostViewAura::RemovingFromRootWindow() {
   aura::client::CursorClient* cursor_client =
       aura::client::GetCursorClient(window_->GetRootWindow());
   if (cursor_client)
     cursor_client->RemoveObserver(this);
 
   DetachFromInputMethod();
 
   window_->GetHost()->RemoveObserver(this);
-  ui::Compositor* compositor = GetCompositor();
-  if (current_surface_.get()) {
-    // We can't get notification for commits after this point, which would
-    // guarantee that the compositor isn't using an old texture any more, so
-    // instead we force the layer to stop using any external resources which
-    // synchronizes with the compositor thread, and makes it safe to run the
-    // callback.
-    window_->layer()->SetShowPaintedContent();
-  }
   RunOnCommitCallbacks();
   resize_lock_.reset();
   host_->WasResized();
-
+  ui::Compositor* compositor = GetCompositor();
   if (compositor && compositor->HasObserver(this))
     compositor->RemoveObserver(this);
 
 #if defined(OS_WIN)
   // Update the legacy window's parent temporarily to the desktop window. It
   // will eventually get reparented to the right root.
   if (legacy_render_widget_host_HWND_)
     legacy_render_widget_host_HWND_->UpdateParent(::GetDesktopWindow());
 #endif
 
@@ skipping 36 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content