Linux: split GNOME Keyring integration into a separate process.

chrome/browser/password_manager/keyring_proxy/message_reader.cc

+// Copyright (c) 2011 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.
+
+#include "chrome/browser/password_manager/keyring_proxy/message_reader.h"
+
+// This library is part of a very small helper binary that runs without any
+// dependencies on base. Thus we can't use normal logging; we use assert.
+#include <assert.h>
+
+namespace keyring_proxy {
+
+size_t MessageReader::HandleData(const char* data, size_t size) {
+  assert(!is_complete_);
+  size_t used = 0;
+  while (used < size) {
+    size_t end;
+    for (end = used; end < size && data[end] != '\n'; ++end) {}
+    lines_.back().append(&data[used], end - used);
+    if (end < size) {
+      // We found a newline. Skip past it and figure out what to do.
+      used = end + 1;
+      if (lines_.back().size() > 0) {
+        // The previous line was not empty. Start a new one.
+        lines_.resize(lines_.size() + 1);
+      } else {
+        // If the previous line was empty, this message is complete.
+        lines_.resize(lines_.size() - 1);
+        is_complete_ = true;
+        break;
+      }
+    } else {
+      // There was no newline, just the end of the input. Skip to the end.
+      used = end;
+    }
+  }
+  return used;
+}
+
+}  // namespace keyring_proxy