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

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+// Copyright 2015 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.
+
+:doctype: article
+
+= Project Status
+
+== Completed
+
+Crashpad currently consists of a crash-reporting client and some related tools
+for Mac OS X. The core client work for Mac OS X is substantially complete.
+Crashpad has become the crash reporter client for
+https://dev.chromium.org/Home[Chromium] on Mac OS X as of
+https://chromium.googlesource.com/chromium/src/+/d413b2dcb54d523811d386f1ff4084f677a6d089[March
+2015].
+
+== In Progress
+
+Crashpad is actively being bootstrapped on
+https://crashpad.chromium.org/bug/1[Windows]. All major components are now
+working on Windows, and integration into Chromium is expected shortly.
+
+Initial work on a Crashpad client for
+https://crashpad.chromium.org/bug/30[Android] has begun. This is currently in
+the design phase.
+
+== Future
+
+There are plans to bring Crashpad clients to other operating systems in the
+future, including a more generic non-Android Linux implementation. There are
+also plans to implement a https://crashpad.chromium.org/bug/29[crash report
+processor] as part of Crashpad. No timeline for completing this work has been
+set yet.