[blimp] Add SkPicture caching support.

cc/BUILD.gn

Index: cc/BUILD.gn
diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index bd3c3868c8d26426d5e9c50450f7f4853edc9374..2064895febede6a491977df673654b722bff43bf 100644
--- a/cc/BUILD.gn
+++ b/cc/BUILD.gn
@@ -40,6 +40,13 @@ component("cc") {
     "animation/transform_operation.h",
     "animation/transform_operations.cc",
     "animation/transform_operations.h",
+    "blimp/client_picture_cache.h",
+    "blimp/engine_picture_cache.h",
+    "blimp/image_serialization_processor.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",
@@ -311,7 +318,6 @@ component("cc") {
     "proto/gfx_conversions.h",
     "proto/gpu_conversions.cc",
     "proto/gpu_conversions.h",
-    "proto/image_serialization_processor.h",
     "proto/skia_conversions.cc",
     "proto/skia_conversions.h",
     "proto/synced_property_conversions.cc",
@@ -588,8 +594,12 @@ source_set("test_support") {
     "test/failure_output_surface.h",
     "test/fake_channel_impl.cc",
     "test/fake_channel_impl.h",
+    "test/fake_client_picture_cache.cc",
+    "test/fake_client_picture_cache.h",
     "test/fake_content_layer_client.cc",
     "test/fake_content_layer_client.h",
+    "test/fake_engine_picture_cache.cc",
+    "test/fake_engine_picture_cache.h",
     "test/fake_external_begin_frame_source.cc",
     "test/fake_external_begin_frame_source.h",
     "test/fake_image_serialization_processor.cc",
@@ -667,6 +677,8 @@ source_set("test_support") {
     "test/ordered_texture_map.h",
     "test/paths.cc",
     "test/paths.h",
+    "test/picture_cache_model.cc",
+    "test/picture_cache_model.h",
     "test/pixel_comparator.cc",
     "test/pixel_comparator.h",
     "test/pixel_test.cc",
@@ -792,6 +804,7 @@ test("cc_unittests") {
     "base/simple_enclosed_region_unittest.cc",
     "base/tiling_data_unittest.cc",
     "base/unique_notifier_unittest.cc",
+    "blimp/picture_data_conversions_unittest.cc",
     "debug/layer_tree_debug_state_unittest.cc",
     "debug/micro_benchmark_controller_unittest.cc",
     "debug/rendering_stats_unittest.cc",