cc/blimp: Add a LayerTreeHostRemote implementation.

cc/BUILD.gn

Index: cc/BUILD.gn
diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index 5531e168be5125d37ff34e35c605bef9a5d4cdd0..c76ceb1b6658d35397eabd15b2206a8e0c892632 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",

[danakj, 2016/09/22 23:52:29]

I don't think LTHRemote (or maybe any of the blimp/ dir eventually?) should be
part of the cc component. It's going to be an embedder of of cc, its
relationship is like that of RenderWidgetCompositor. And you shouldn't need to
build it to build cc. What's your plan around this?

[Khushal, 2016/09/23 00:05:42]

There is too much meshing of classes right now (I'm not sure exactly how I'm
going to restructure the engine/client picture caching) that I first wanted to
transition everything into cc/blimp, and then have one change which fixes the
build and adds DEPS to make sure there are no cc/blimp includes in rest of cc.

The minimal serialization code is still going to remain, its Layers, LayerTree
and DisplayItemList only. And I'm more inclined to have it live in the classes
being serialized, because people are now used to updating the serialization code
there already. So cc will still have the cc/proto dep, but not cc/blimp.

+    "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",
@@ -504,6 +510,7 @@ 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",