Move SharedMemoryLimits out of WebGraphicsContext3DCommandBufferImpl.

gpu/command_buffer/client/shared_memory_limits.h

Index: gpu/command_buffer/client/shared_memory_limits.h
diff --git a/gpu/command_buffer/client/shared_memory_limits.h b/gpu/command_buffer/client/shared_memory_limits.h
new file mode 100644
index 0000000000000000000000000000000000000000..53960245beb691d5cabb564cb244265346ab6e0a
--- /dev/null
+++ b/gpu/command_buffer/client/shared_memory_limits.h
@@ -0,0 +1,24 @@
+// Copyright (c) 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.
+
+#ifndef GPU_COMMAND_BUFFER_CLIENT_SHARED_MEMORY_LIMITS_H_
+#define GPU_COMMAND_BUFFER_CLIENT_SHARED_MEMORY_LIMITS_H_
+
+#include <stddef.h>
+
+namespace gpu {
+
+struct SharedMemoryLimits {
+  size_t command_buffer_size = 1024 * 1024;
+  size_t start_transfer_buffer_size = 1 * 1024 * 1024;
+  size_t min_transfer_buffer_size = 1 * 256 * 1024;
+  size_t max_transfer_buffer_size = 16 * 1024 * 1024;
+
+  static constexpr size_t kNoLimit = 0;
+  size_t mapped_memory_reclaim_limit = kNoLimit;
+};
+
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_CLIENT_SHARED_MEMORY_LIMITS_H_