[blimp] Add SkPicture caching support.

blimp/engine/BUILD.gn

 # Copyright 2015 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/features.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/grit/repack.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 265 matching lines @@
     "//ui/base/ime",
     "//ui/resources",
     "//ui/wm",
   ]
 }
 
 source_set("renderer") {
   sources = [
     "renderer/blimp_content_renderer_client.cc",
     "renderer/blimp_content_renderer_client.h",
+    "renderer/blimp_engine_picture_cache.cc",
+    "renderer/blimp_engine_picture_cache.h",
     "renderer/engine_image_serialization_processor.cc",
     "renderer/engine_image_serialization_processor.h",
   ]
 
   deps = [
     ":blob_channel_mojo",
     "//base",
     "//blimp/common",
     "//blimp/common/proto",
     "//cc",
@@ skipping 141 matching lines @@
     "//content/public/browser",
     "//net",
     "//net:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/WebKit/public:blink_headers",
     "//ui/base/ime",
   ]
 }
 
+source_set("renderer_unit_tests") {
+  testonly = true
+
+  sources = [
+    "renderer/blimp_engine_picture_cache_unittest.cc",
+  ]
+
+  deps = [
+    ":renderer",
+    "//blimp/test:support",
+    "//skia",
+    "//testing/gtest",
+  ]
+}
+
 source_set("unit_tests") {
   testonly = true
 
   deps = [
     ":app_unit_tests",
     ":common_unit_tests",
     ":feature_unit_tests",
+    ":renderer_unit_tests",
   ]
 }
 
 if (is_linux) {
   executable("blimp_engine_app") {
     sources = [
       "app/blimp_main.cc",
     ]
 
     deps = [
@@ skipping 61 matching lines @@
       _rebased_dockerfile,
       "--startup-script",
       _rebased_startup_script,
       "--manifest",
       _rebased_manifest,
       "--output",
       rebase_path(_bundle),
     ]
   }
 }