Implemented support for GL constext share groups in the renderer process.

gpu/command_buffer/common/id_allocator.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.
 
 // This file contains the implementation of IdAllocator.
 
 #include "../common/id_allocator.h"
 #include "../common/logging.h"
 
 namespace gpu {
 
+IdAllocatorInterface::~IdAllocatorInterface() {
+}
+
 IdAllocator::IdAllocator() {}
 
 IdAllocator::~IdAllocator() {}
 
 ResourceId IdAllocator::AllocateID() {
   ResourceId id;
   ResourceIdSet::iterator iter = free_ids_.begin();
   if (iter != free_ids_.end()) {
     id = *iter;
   } else {
@@ skipping 56 matching lines @@
   for (ResourceIdSet::const_iterator it = used_ids_.begin();
        it != used_ids_.end(); ++it) {
     if ((*it) != id) {
       return id;
     }
     ++id;
   }
   return id;
 }
 
+NonReusedIdAllocator::NonReusedIdAllocator() : last_id_(0) {
+}
+
+NonReusedIdAllocator::~NonReusedIdAllocator() {
+}
+
+ResourceId NonReusedIdAllocator::AllocateID() {
+  return ++last_id_;
+}
+
+ResourceId NonReusedIdAllocator::AllocateIDAtOrAbove(ResourceId desired_id) {
+  if (desired_id > last_id_)
+    last_id_ = desired_id;
+
+  return ++last_id_;
+}
+
+bool NonReusedIdAllocator::MarkAsUsed(ResourceId id) {
+  GPU_NOTREACHED();
+  return false;
+}
+
+void NonReusedIdAllocator::FreeID(ResourceId id) {
+}
+
+bool NonReusedIdAllocator::InUse(ResourceId id) const {
+  GPU_NOTREACHED();
+  return false;
+}
+
 }  // namespace gpu