Command to mark surface inactive, so gpu process can release resources.

content/common/gpu/image_transport_surface_mac.cc

 // Copyright (c) 2011 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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/common/gpu/image_transport_surface.h"
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 26 matching lines @@
   virtual gfx::Size GetSize() OVERRIDE;
   virtual void OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
   virtual unsigned int GetBackingFrameBufferObject() OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation
   virtual void OnNewSurfaceACK(uint64 surface_id,
                                TransportDIB::Handle shm_handle) OVERRIDE;
   virtual void OnBuffersSwappedACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
+  virtual void OnSurfaceVisible(bool visible) OVERRIDE;
 
  private:
   virtual ~IOSurfaceImageTransportSurface() OVERRIDE;
 
   uint32 fbo_id_;
   GLuint texture_id_;
 
   base::mac::ScopedCFTypeRef<CFTypeRef> io_surface_;
 
   // The id of |io_surface_| or 0 if that's NULL.
@@ skipping 28 matching lines @@
   virtual gfx::Size GetSize() OVERRIDE;
   virtual void OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
   virtual unsigned int GetBackingFrameBufferObject() OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation
   virtual void OnBuffersSwappedACK() OVERRIDE;
   virtual void OnNewSurfaceACK(uint64 surface_id,
                                TransportDIB::Handle shm_handle) OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
+  virtual void OnSurfaceVisible(bool visible) OVERRIDE;
 
  private:
   virtual ~TransportDIBImageTransportSurface() OVERRIDE;
 
   uint32 fbo_id_;
   GLuint render_buffer_id_;
 
   scoped_ptr<TransportDIB> shared_mem_;
 
   gfx::Size size_;
@@ skipping 194 matching lines @@
   GpuHostMsg_AcceleratedSurfaceNew_Params params;
   params.width = size_.width();
   params.height = size_.height();
   params.surface_id = io_surface_id_;
   params.create_transport_dib = false;
   helper_->SendAcceleratedSurfaceNew(params);
 
   helper_->SetScheduled(false);
 }
 
+void IOSurfaceImageTransportSurface::OnSurfaceVisible(bool visible) {
+}
+
 TransportDIBImageTransportSurface::TransportDIBImageTransportSurface(
     GpuChannelManager* manager,
     int32 render_view_id,
     int32 renderer_id,
     int32 command_buffer_id,
     gfx::PluginWindowHandle handle)
         : gfx::PbufferGLSurfaceCGL(gfx::Size(1, 1)),
           fbo_id_(0),
           render_buffer_id_(0) {
   helper_.reset(new ImageTransportHelper(this,
@@ skipping 109 matching lines @@
   GpuHostMsg_AcceleratedSurfaceNew_Params params;
   params.width = size_.width();
   params.height = size_.height();
   params.surface_id = next_id_++;
   params.create_transport_dib = true;
   helper_->SendAcceleratedSurfaceNew(params);
 
   helper_->SetScheduled(false);
 }
 
+void TransportDIBImageTransportSurface::OnSurfaceVisible(bool visible) {
+}
+
 }  // namespace
 
 // static
 scoped_refptr<gfx::GLSurface> ImageTransportSurface::CreateSurface(
     GpuChannelManager* manager,
     int32 render_view_id,
     int32 renderer_id,
     int32 command_buffer_id,
     gfx::PluginWindowHandle handle) {
   scoped_refptr<gfx::GLSurface> surface;
@@ skipping 19 matching lines @@
       NOTREACHED();
       return NULL;
   }
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
 #endif  // defined(USE_GPU)