cc/blimp: Add a LayerTreeHostRemote implementation.

cc/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
@@ skipping 25 matching lines @@
     "animation/scroll_offset_animations_impl.h",
     "animation/target_property.cc",
     "animation/target_property.h",
     "animation/timing_function.cc",
     "animation/timing_function.h",
     "animation/transform_operation.cc",
     "animation/transform_operation.h",
     "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",
     "blimp/picture_data_conversions.h",
     "debug/benchmark_instrumentation.cc",
     "debug/benchmark_instrumentation.h",
     "debug/debug_colors.cc",
     "debug/debug_colors.h",
     "debug/debug_rect_history.cc",
     "debug/debug_rect_history.h",
@@ skipping 439 matching lines @@
     "trees/damage_tracker.cc",
     "trees/damage_tracker.h",
     "trees/draw_property_utils.cc",
     "trees/draw_property_utils.h",
     "trees/effect_node.cc",
     "trees/effect_node.h",
     "trees/latency_info_swap_promise_monitor.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",
     "trees/layer_tree_host_common.h",
     "trees/layer_tree_host_impl.cc",
     "trees/layer_tree_host_impl.h",
     "trees/layer_tree_host_in_process.cc",
     "trees/layer_tree_host_in_process.h",
     "trees/layer_tree_host_single_thread_client.h",
     "trees/layer_tree_impl.cc",
@@ skipping 538 matching lines @@
     "//ui/gl:test_support",
   ]
 
   # This target should not require the Chrome executable to run.
   assert_no_deps = [ "//chrome" ]
 
   data = [
     "test/data/",
   ]
 }