ui: Add support for creating GLImage instances from shared memory pools.

gpu/command_buffer/service/in_process_command_buffer.cc

 // Copyright 2013 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 "gpu/command_buffer/service/in_process_command_buffer.h"
 
 #include <queue>
 #include <set>
 #include <utility>
 
@@ skipping 80 matching lines @@
 }
 
 gfx::GpuMemoryBufferHandle ShareGpuMemoryBufferToGpuThread(
     const gfx::GpuMemoryBufferHandle& source_handle,
     bool* requires_sync_point) {
   switch (source_handle.type) {
     case gfx::SHARED_MEMORY_BUFFER: {
       gfx::GpuMemoryBufferHandle handle;
       handle.type = gfx::SHARED_MEMORY_BUFFER;
       handle.handle = ShareToGpuThread(source_handle.handle);
+      handle.offset = source_handle.offset;
       *requires_sync_point = false;
       return handle;
     }
     case gfx::IO_SURFACE_BUFFER:
     case gfx::SURFACE_TEXTURE_BUFFER:
     case gfx::OZONE_NATIVE_PIXMAP:
       *requires_sync_point = true;
       return source_handle;
     default:
       NOTREACHED();
@@ skipping 595 matching lines @@
   DCHECK(image_manager);
   if (image_manager->LookupImage(id)) {
     LOG(ERROR) << "Image already exists with same ID.";
     return;
   }
 
   switch (handle.type) {
     case gfx::SHARED_MEMORY_BUFFER: {
       scoped_refptr<gfx::GLImageSharedMemory> image(
           new gfx::GLImageSharedMemory(size, internalformat));
-      if (!image->Initialize(handle.handle, handle.id, format)) {
+      if (!image->Initialize(handle.handle, handle.id, format, handle.offset)) {
         LOG(ERROR) << "Failed to initialize image.";
         return;
       }
 
       image_manager->AddImage(image.get(), id);
       break;
     }
     default: {
       if (!image_factory_) {
         LOG(ERROR) << "Image factory missing but required by buffer type.";
@@ skipping 365 matching lines @@
     framebuffer_completeness_cache_ =
         new gpu::gles2::FramebufferCompletenessCache;
   return framebuffer_completeness_cache_;
 }
 
 SyncPointManager* GpuInProcessThread::sync_point_manager() {
   return sync_point_manager_;
 }
 
 }  // namespace gpu