Add MinidumpCrashpadInfoWriter and its test

minidump/minidump_crashpad_info_writer.cc

Index: minidump/minidump_crashpad_info_writer.cc
diff --git a/minidump/minidump_crashpad_info_writer.cc b/minidump/minidump_crashpad_info_writer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2ad7291f841c8997b956b16fce2b18c578f14b1c
--- /dev/null
+++ b/minidump/minidump_crashpad_info_writer.cc
@@ -0,0 +1,80 @@
+// 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 "minidump/minidump_crashpad_info_writer.h"
+
+#include "base/logging.h"
+
+namespace crashpad {
+
+MinidumpCrashpadInfoWriter::MinidumpCrashpadInfoWriter()
+    : MinidumpStreamWriter(), crashpad_info_(), simple_annotations_() {
+  crashpad_info_.size = sizeof(crashpad_info_);
+  crashpad_info_.version = 1;
+}
+
+MinidumpCrashpadInfoWriter::~MinidumpCrashpadInfoWriter() {
+}
+
+void MinidumpCrashpadInfoWriter::SetSimpleAnnotations(
+    MinidumpSimpleStringDictionaryWriter* simple_annotations) {
+  DCHECK_EQ(state(), kStateMutable);
+
+  simple_annotations_ = simple_annotations;
+}
+
+bool MinidumpCrashpadInfoWriter::Freeze() {
+  DCHECK_EQ(state(), kStateMutable);
+
+  if (!MinidumpStreamWriter::Freeze()) {
+    return false;
+  }
+
+  if (simple_annotations_) {
+    simple_annotations_->RegisterLocationDescriptor(
+        &crashpad_info_.simple_annotations);
+  }
+
+  return true;
+}
+
+size_t MinidumpCrashpadInfoWriter::SizeOfObject() {
+  DCHECK_GE(state(), kStateFrozen);
+
+  return sizeof(crashpad_info_);
+}
+
+std::vector<internal::MinidumpWritable*>
+MinidumpCrashpadInfoWriter::Children() {
+  DCHECK_GE(state(), kStateFrozen);
+
+  std::vector<MinidumpWritable*> children;
+  if (simple_annotations_) {
+    children.push_back(simple_annotations_);
+  }
+
+  return children;
+}
+
+bool MinidumpCrashpadInfoWriter::WriteObject(FileWriterInterface* file_writer) {
+  DCHECK_EQ(state(), kStateWritable);
+
+  return file_writer->Write(&crashpad_info_, sizeof(crashpad_info_));
+}
+
+MinidumpStreamType MinidumpCrashpadInfoWriter::StreamType() const {
+  return kMinidumpStreamTypeCrashpadInfo;
+}
+
+}  // namespace crashpad