Added chromium source file preamble.

gpu/command_buffer/client/id_allocator.cc

-/*
- * Copyright 2009, Google Inc.
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- * modification, are permitted provided that the following conditions are
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-
+// Copyright (c) 2009 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 "gpu/command_buffer/client/id_allocator.h"
 
 namespace gpu {
 
 IdAllocator::IdAllocator() : bitmap_(1) { bitmap_[0] = 0; }
 
 static const unsigned int kBitsPerUint32 = sizeof(Uint32) * 8;  // NOLINT
@@ skipping 34 matching lines @@
 // Gets the bit from the proper entry. This doesn't resize the vector, just
 // returns false if the bit is beyond the last entry.
 bool IdAllocator::GetBit(unsigned int bit) const {
   size_t size = bitmap_.size();
   if (bit / kBitsPerUint32 >= size) return false;
   Uint32 mask = 1U << (bit % kBitsPerUint32);
   return (bitmap_[bit / kBitsPerUint32] & mask) != 0;
 }
 
 }  // namespace gpu