Update Crashpad to 4a2043ea65e2641ef1a921801c0aaa15ada02fc7

third_party/crashpad/crashpad/util/misc/zlib.cc

-// Copyright 2015 The Crashpad Authors. All rights reserved.
+// Copyright 2017 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "util/thread/thread.h"
+#include "util/misc/zlib.h"
 
 #include "base/logging.h"
+#include "base/strings/stringprintf.h"
+#include "third_party/zlib/zlib_crashpad.h"
 
 namespace crashpad {
 
-void Thread::Start() {
-  DCHECK(!platform_thread_);
-  int rv = pthread_create(&platform_thread_, nullptr, ThreadEntryThunk, this);
-  PCHECK(0 == rv);
+int ZlibWindowBitsWithGzipWrapper(int window_bits) {
+  // See the documentation for deflateInit2() and inflateInit2() in <zlib.h>. 0
+  // is only valid during decompression.
+
+  DCHECK(window_bits == 0 || (window_bits >= 8 && window_bits <= 15))
+      << window_bits;
+
+  return 16 + window_bits;
 }
 
-void Thread::Join() {
-  DCHECK(platform_thread_);
-  int rv = pthread_join(platform_thread_, nullptr);
-  PCHECK(0 == rv);
-  platform_thread_ = 0;
-}
-
-// static
-void* Thread::ThreadEntryThunk(void* argument) {
-  Thread* self = reinterpret_cast<Thread*>(argument);
-  self->ThreadMain();
-  return nullptr;
+std::string ZlibErrorString(int zr) {
+  return base::StringPrintf("%s (%d)", zError(zr), zr);
 }
 
 }  // namespace crashpad