gpu: Add CHROMIUM_texture_from_image spec and fence support.

components/exo/buffer.cc

 // Copyright 2015 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 "components/exo/buffer.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 #include <stdint.h>
@@ skipping 220 matching lines @@
   callback.Run();
 }
 
 gpu::SyncToken Buffer::Texture::BindTexImage() {
   gpu::SyncToken sync_token;
   if (context_provider_) {
     gpu::gles2::GLES2Interface* gles2 = context_provider_->ContextGL();
     gles2->ActiveTexture(GL_TEXTURE0);
     gles2->BindTexture(texture_target_, texture_id_);
     DCHECK_NE(image_id_, 0u);
-    gles2->BindTexImage2DCHROMIUM(texture_target_, image_id_);
+    gles2->BindTexImage2DCHROMIUM(texture_target_, image_id_, 0);
     // Generate a crypto-secure random mailbox name if not already done.
     if (mailbox_.IsZero())
       CreateGLTextureMailbox(gles2, texture_id_, texture_target_, &mailbox_);
     // Create and return a sync token that can be used to ensure that the
     // BindTexImage2DCHROMIUM call is processed before issuing any commands
     // that will read from the texture on a different context.
     uint64_t fence_sync = gles2->InsertFenceSyncCHROMIUM();
     gles2->OrderingBarrierCHROMIUM();
     gles2->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
   }
@@ skipping 25 matching lines @@
 }
 
 gpu::SyncToken Buffer::Texture::CopyTexImage(Texture* destination,
                                              const base::Closure& callback) {
   gpu::SyncToken sync_token;
   if (context_provider_) {
     gpu::gles2::GLES2Interface* gles2 = context_provider_->ContextGL();
     gles2->ActiveTexture(GL_TEXTURE0);
     gles2->BindTexture(texture_target_, texture_id_);
     DCHECK_NE(image_id_, 0u);
-    gles2->BindTexImage2DCHROMIUM(texture_target_, image_id_);
+    gles2->BindTexImage2DCHROMIUM(texture_target_, image_id_, 0);
     gles2->CopyTextureCHROMIUM(texture_id_, destination->texture_id_,
                                internalformat_, GL_UNSIGNED_BYTE, false, false,
                                false);
     DCHECK_NE(query_id_, 0u);
     gles2->BeginQueryEXT(query_type_, query_id_);
     gles2->ReleaseTexImage2DCHROMIUM(texture_target_, image_id_);
     gles2->EndQueryEXT(query_type_);
     // Run callback when query result is available and ReleaseTexImage has been
     // handled.
     ReleaseWhenQueryResultIsAvailable(callback);
@@ skipping 243 matching lines @@
 }
 
 void Buffer::ReleaseContentsTexture(std::unique_ptr<Texture> texture) {
   TRACE_EVENT0("exo", "Buffer::ReleaseContentsTexture");
 
   contents_texture_ = std::move(texture);
   Release();
 }
 
 }  // namespace exo