Copy Crashpad into the Chrome tree instead of importing it via DEPS

third_party/crashpad/crashpad/util/net/http_body.cc

Index: third_party/crashpad/crashpad/util/net/http_body.cc
diff --git a/third_party/crashpad/crashpad/util/net/http_body.cc b/third_party/crashpad/crashpad/util/net/http_body.cc
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+// Copyright 2014 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/net/http_body.h"
+
+#include <string.h>
+
+#include <algorithm>
+#include <limits>
+
+#include "base/logging.h"
+#include "base/stl_util.h"
+#include "util/misc/implicit_cast.h"
+
+namespace crashpad {
+
+StringHTTPBodyStream::StringHTTPBodyStream(const std::string& string)
+    : HTTPBodyStream(), string_(string), bytes_read_() {
+}
+
+StringHTTPBodyStream::~StringHTTPBodyStream() {
+}
+
+FileOperationResult StringHTTPBodyStream::GetBytesBuffer(uint8_t* buffer,
+                                                         size_t max_len) {
+  size_t num_bytes_remaining = string_.length() - bytes_read_;
+  if (num_bytes_remaining == 0) {
+    return num_bytes_remaining;
+  }
+
+  size_t num_bytes_returned = std::min(
+      std::min(num_bytes_remaining, max_len),
+      implicit_cast<size_t>(std::numeric_limits<FileOperationResult>::max()));
+  memcpy(buffer, &string_[bytes_read_], num_bytes_returned);
+  bytes_read_ += num_bytes_returned;
+  return num_bytes_returned;
+}
+
+FileHTTPBodyStream::FileHTTPBodyStream(const base::FilePath& path)
+    : HTTPBodyStream(), path_(path), file_(), file_state_(kUnopenedFile) {
+}
+
+FileHTTPBodyStream::~FileHTTPBodyStream() {
+}
+
+FileOperationResult FileHTTPBodyStream::GetBytesBuffer(uint8_t* buffer,
+                                                       size_t max_len) {
+  switch (file_state_) {
+    case kUnopenedFile:
+      file_.reset(LoggingOpenFileForRead(path_));
+      if (!file_.is_valid()) {
+        file_state_ = kFileOpenError;
+        return -1;
+      }
+      file_state_ = kReading;
+      break;
+    case kFileOpenError:
+      return -1;
+    case kClosedAtEOF:
+      return 0;
+    case kReading:
+      break;
+  }
+
+  FileOperationResult rv = ReadFile(file_.get(), buffer, max_len);
+  if (rv == 0) {
+    file_.reset();
+    file_state_ = kClosedAtEOF;
+  } else if (rv < 0) {
+    PLOG(ERROR) << "read";
+  }
+  return rv;
+}
+
+CompositeHTTPBodyStream::CompositeHTTPBodyStream(
+    const CompositeHTTPBodyStream::PartsList& parts)
+    : HTTPBodyStream(), parts_(parts), current_part_(parts_.begin()) {
+}
+
+CompositeHTTPBodyStream::~CompositeHTTPBodyStream() {
+  STLDeleteContainerPointers(parts_.begin(), parts_.end());
+}
+
+FileOperationResult CompositeHTTPBodyStream::GetBytesBuffer(uint8_t* buffer,
+                                                            size_t buffer_len) {
+  FileOperationResult max_len = std::min(
+      buffer_len,
+      implicit_cast<size_t>(std::numeric_limits<FileOperationResult>::max()));
+  FileOperationResult bytes_copied = 0;
+  while (bytes_copied < max_len && current_part_ != parts_.end()) {
+    FileOperationResult this_read =
+        (*current_part_)
+            ->GetBytesBuffer(buffer + bytes_copied, max_len - bytes_copied);
+
+    if (this_read == 0) {
+      // If the current part has returned 0 indicating EOF, advance the current
+      // part and try again.
+      ++current_part_;
+    } else if (this_read < 0) {
+      return this_read;
+    }
+    bytes_copied += this_read;
+  }
+
+  return bytes_copied;
+}
+
+}  // namespace crashpad