services/ui: Revert CLs that broke Windows.

services/ui/gles2/command_buffer_driver_manager.cc

+// Copyright 2016 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 "services/ui/gles2/command_buffer_driver_manager.h"
+
+#include <algorithm>
+
+#include "services/ui/gles2/command_buffer_driver.h"
+
+namespace ui {
+
+CommandBufferDriverManager::CommandBufferDriverManager() {}
+
+CommandBufferDriverManager::~CommandBufferDriverManager() {}
+
+void CommandBufferDriverManager::AddDriver(CommandBufferDriver* driver) {
+  DCHECK(CalledOnValidThread());
+  DCHECK(std::find(drivers_.begin(), drivers_.end(), driver) == drivers_.end());
+  drivers_.push_back(driver);
+}
+
+void CommandBufferDriverManager::RemoveDriver(CommandBufferDriver* driver) {
+  DCHECK(CalledOnValidThread());
+  auto it = std::find(drivers_.begin(), drivers_.end(), driver);
+  DCHECK(it != drivers_.end());
+  drivers_.erase(it);
+}
+
+uint32_t CommandBufferDriverManager::GetUnprocessedOrderNum() const {
+  DCHECK(CalledOnValidThread());
+  uint32_t unprocessed_order_num = 0;
+  for (auto* d : drivers_) {
+    unprocessed_order_num =
+      std::max(unprocessed_order_num, d->GetUnprocessedOrderNum());
+  }
+  return unprocessed_order_num;
+}
+
+uint32_t CommandBufferDriverManager::GetProcessedOrderNum() const {
+  DCHECK(CalledOnValidThread());
+  uint32_t processed_order_num = 0;
+  for (auto* d : drivers_) {
+    processed_order_num =
+        std::max(processed_order_num, d->GetProcessedOrderNum());
+  }
+  return processed_order_num;
+}
+
+}  // namespace ui