content: Add multi-proc surface texture support.

content/browser/gpu/browser_gpu_channel_host_factory.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/gpu/browser_gpu_channel_host_factory.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
@@ skipping 375 matching lines @@
     return scoped_ptr<gfx::GpuMemoryBuffer>();
 
   scoped_ptr<GpuMemoryBufferImplShm> buffer(
       new GpuMemoryBufferImplShm(gfx::Size(width, height), internalformat));
   if (!buffer->InitializeFromSharedMemory(shm.Pass()))
     return scoped_ptr<gfx::GpuMemoryBuffer>();
 
   return buffer.PassAs<gfx::GpuMemoryBuffer>();
 }
 
+void BrowserGpuChannelHostFactory::CreateSurfaceTextureOnIO(
+    int32 surface_texture_id,
+    base::ProcessHandle process_handle,
+    const CreateSurfaceTextureCallback& callback) {
+  GpuProcessHost* host = GpuProcessHost::FromID(gpu_host_id_);
+  if (!host) {
+    SurfaceTextureCreatedOnIO(callback);
+    return;
+  }
+
+  host->CreateSurfaceTexture(
+      surface_texture_id,
+      process_handle,
+      base::Bind(&BrowserGpuChannelHostFactory::SurfaceTextureCreatedOnIO,
+                 callback));
+}
+
+// static
+void BrowserGpuChannelHostFactory::SurfaceTextureCreatedOnIO(
+    const CreateSurfaceTextureCallback& callback) {
+  BrowserThread::PostTask(
+      BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&BrowserGpuChannelHostFactory::OnSurfaceTextureCreated,
+                 callback));
+}
+
+// static
+void BrowserGpuChannelHostFactory::OnSurfaceTextureCreated(
+    const CreateSurfaceTextureCallback& callback) {
+  callback.Run();
+}
+
+void BrowserGpuChannelHostFactory::CreateSurfaceTexture(
+    int32 surface_texture_id,
+    base::ProcessHandle process_handle,
+    const CreateSurfaceTextureCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  GetIOLoopProxy()->PostTask(FROM_HERE, base::Bind(
+        &BrowserGpuChannelHostFactory::CreateSurfaceTextureOnIO,
+        base::Unretained(this),
+        surface_texture_id,
+        process_handle,
+        callback));
+}
+
 // static
 void BrowserGpuChannelHostFactory::AddFilterOnIO(
     int host_id,
     scoped_refptr<IPC::ChannelProxy::MessageFilter> filter) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   GpuProcessHost* host = GpuProcessHost::FromID(host_id);
   if (host)
     host->AddFilter(filter.get());
 }
@@ skipping 15 matching lines @@
   filter->AddRoute(MSG_ROUTING_CONTROL, handler);
 
   GetIOLoopProxy()->PostTask(
       FROM_HERE,
       base::Bind(&BrowserGpuChannelHostFactory::AddFilterOnIO,
                  gpu_host_id_,
                  filter));
 }
 
 }  // namespace content