Added ImagePipe

mojo/services/gfx/images/cpp/image_pipe_consumer_endpoint.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 "image_pipe_consumer_endpoint.h"
+
+namespace image_pipe {
+
+void ImagePipeConsumerEndpoint::CloseEndpoint() {
+  image_pipe_binding_.Close();
+  delegate_->HandleEndpointClosed();
+}
+
+ImagePipeConsumerEndpoint::ImagePipeConsumerEndpoint(
+    mojo::InterfaceRequest<mojo::gfx::ImagePipe> request,
+    ImagePipeConsumerDelegate* delegate)
+    : state_tracker_(false, [this]() { CloseEndpoint(); }),
+      delegate_(delegate),
+      image_pipe_binding_(this, request.Pass()) {
+  image_pipe_binding_.set_connection_error_handler([this]() {
+    MOJO_LOG(ERROR) << "Image Pipe Connection Error for Consumer!";
+    CloseEndpoint();
+  });
+}
+
+ImagePipeConsumerEndpoint::~ImagePipeConsumerEndpoint() {}
+
+void ImagePipeConsumerEndpoint::ReleaseImage(
+    uint32_t id,
+    mojo::gfx::PresentationStatus status) {
+  state_tracker_.ConsumerRelease(id, status);
+}
+
+// mojo::gfx::ImagePipe implementation
+void ImagePipeConsumerEndpoint::AddImage(mojo::gfx::ImagePtr image,
+                                         uint32_t id) {
+  state_tracker_.ProducerAdd(id);
+  delegate_->AddImage(image.Pass(), id);
+}
+
+void ImagePipeConsumerEndpoint::RemoveImage(uint32_t id) {
+  state_tracker_.ProducerRemove(id);
+  delegate_->RemoveImage(id);
+}
+
+void ImagePipeConsumerEndpoint::PresentImage(
+    uint32_t id,
+    const PresentImageCallback& callback) {
+  state_tracker_.ProducerPresent(id, callback);
+  delegate_->PresentImage(id);
+}
+
+void ImagePipeConsumerEndpoint::FlushImages() {
+  state_tracker_.ProducerFlush();
+}
+
+bool ImagePipeConsumerEndpoint::AcquireNextImage(uint32_t* out_id) {
+  return state_tracker_.AcquireNextImage(out_id);
+}
+
+void ImagePipeConsumerEndpoint::DisableFatalErrorsForTesting() {
+  state_tracker_.DisableFatalErrorsForTesting();
+}
+
+}  // namespace image_pipe