cc/blimp: Add a LayerTreeHostRemote implementation.

cc/BUILD.gn

Index: cc/BUILD.gn
diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index d1b5cd8382dedc231e992e1eb4d521d3eaef350d..543d64e80d65e88e380bbe6f1439ba4bd8386d4e 100644
--- a/cc/BUILD.gn
+++ b/cc/BUILD.gn
@@ -43,8 +43,14 @@ component("cc") {
     "animation/transform_operations.cc",
     "animation/transform_operations.h",
     "blimp/client_picture_cache.h",
+    "blimp/compositor_proto_state.cc",
+    "blimp/compositor_proto_state.h",
+    "blimp/compositor_proto_state_sink.h",
+    "blimp/compositor_proto_state_sink_client.h",
     "blimp/engine_picture_cache.h",
     "blimp/image_serialization_processor.h",
+    "blimp/layer_tree_host_remote.cc",
+    "blimp/layer_tree_host_remote.h",
     "blimp/picture_data.cc",
     "blimp/picture_data.h",
     "blimp/picture_data_conversions.cc",
@@ -507,6 +513,7 @@ component("cc") {
     "trees/latency_info_swap_promise_monitor.h",
     "trees/layer_tree.cc",
     "trees/layer_tree.h",
+    "trees/layer_tree_host.cc",
     "trees/layer_tree_host.h",
     "trees/layer_tree_host_client.h",
     "trees/layer_tree_host_common.cc",
@@ -625,6 +632,8 @@ static_library("test_support") {
     "test/fake_compositor_frame_sink.h",
     "test/fake_compositor_frame_sink_client.cc",
     "test/fake_compositor_frame_sink_client.h",
+    "test/fake_compositor_proto_state_sink.cc",
+    "test/fake_compositor_proto_state_sink.h",
     "test/fake_content_layer_client.cc",
     "test/fake_content_layer_client.h",
     "test/fake_engine_picture_cache.cc",
@@ -828,6 +837,7 @@ test("cc_unittests") {
     "base/simple_enclosed_region_unittest.cc",
     "base/tiling_data_unittest.cc",
     "base/unique_notifier_unittest.cc",
+    "blimp/layer_tree_host_remote_unittest.cc",
     "blimp/picture_data_conversions_unittest.cc",
     "debug/layer_tree_debug_state_unittest.cc",
     "debug/micro_benchmark_controller_unittest.cc",