Readd the clipboard service and get it compiling again.

components/mus/clipboard/clipboard_impl.cc

+// Copyright 2016 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 "components/mus/clipboard/clipboard_impl.h"
+
+#include <string.h>
+#include <utility>
+
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/array.h"
+#include "mojo/public/cpp/bindings/callback.h"
+#include "mojo/public/cpp/bindings/string.h"
+
+using mojo::Array;
+using mojo::Map;
+using mojo::String;
+
+namespace mus {
+namespace clipboard {
+
+// ClipboardData contains data copied to the Clipboard for a variety of formats.
+// It mostly just provides APIs to cleanly access and manipulate this data.
+class ClipboardImpl::ClipboardData {
+ public:
+  ClipboardData() {}
+  ~ClipboardData() {}
+
+  Array<String> GetMimeTypes() const {
+    Array<String> types(data_types_.size());
+    int i = 0;
+    for (auto it = data_types_.begin(); it != data_types_.end(); ++it, ++i)
+      types[i] = it->first;
+
+    return types;
+  }
+
+  void SetData(Map<String, Array<uint8_t>> data) {
+    data_types_ = std::move(data);
+  }
+
+  void GetData(const String& mime_type, Array<uint8_t>* data) const {
+    auto it = data_types_.find(mime_type);
+    if (it != data_types_.end())
+      *data = it->second.Clone();
+  }
+
+ private:
+  Map<String, Array<uint8_t>> data_types_;
+
+  DISALLOW_COPY_AND_ASSIGN(ClipboardData);
+};
+
+ClipboardImpl::ClipboardImpl() {
+  for (int i = 0; i < kNumClipboards; ++i) {
+    sequence_number_[i] = 0;
+    clipboard_state_[i].reset(new ClipboardData);
+  }
+}
+
+ClipboardImpl::~ClipboardImpl() {
+}
+
+void ClipboardImpl::AddBinding(mojom::ClipboardRequest request) {
+  bindings_.AddBinding(this, std::move(request));
+}
+
+void ClipboardImpl::GetSequenceNumber(
+    Clipboard::Type clipboard_type,
+    const GetSequenceNumberCallback& callback) {
+  callback.Run(sequence_number_[static_cast<int>(clipboard_type)]);
+}
+
+void ClipboardImpl::GetAvailableMimeTypes(
+    Clipboard::Type clipboard_type,
+    const GetAvailableMimeTypesCallback& callback) {
+  int clipboard_num = static_cast<int>(clipboard_type);
+  callback.Run(sequence_number_[clipboard_num],
+               clipboard_state_[clipboard_num]->GetMimeTypes());
+}
+
+void ClipboardImpl::ReadMimeType(
+    uint64_t sequence,
+    Clipboard::Type clipboard_type,
+    const String& mime_type,
+    const ReadMimeTypeCallback& callback) {
+  int clipboard_num = static_cast<int>(clipboard_type);
+  Array<uint8_t> mime_data(nullptr);
+  bool valid_sequence_number = sequence_number_[clipboard_num] == sequence;
+
+  if (valid_sequence_number)
+    clipboard_state_[clipboard_num]->GetData(mime_type, &mime_data);
+
+  callback.Run(valid_sequence_number, std::move(mime_data));
+}
+
+void ClipboardImpl::WriteClipboardData(
+    Clipboard::Type clipboard_type,
+    Map<String, Array<uint8_t>> data,
+    const WriteClipboardDataCallback& callback) {
+  int clipboard_num = static_cast<int>(clipboard_type);
+  sequence_number_[clipboard_num]++;
+  clipboard_state_[clipboard_num]->SetData(std::move(data));
+  callback.Run(sequence_number_[clipboard_num]);
+}
+
+}  // namespace clipboard
+}  // namespace mus