Move cc::DisplayItemList and related classes into cc/paint/

cc/base/BUILD.gn

Index: cc/base/BUILD.gn
diff --git a/cc/base/BUILD.gn b/cc/base/BUILD.gn
index ee72bb2c69104b77405cf1b1b207608a715f1d13..fea203942227b019ff450bea3a13f7c3d8c6988b 100644
--- a/cc/base/BUILD.gn
+++ b/cc/base/BUILD.gn
@@ -4,10 +4,9 @@
 
 import("//cc/cc.gni")
 
-cc_source_set("base") {
-  visibility = [ "//cc" ]
-
+component("cc_base") {

[enne (OOO), 2017/03/16 00:51:15]

This can't be called base because it collides with //base's output, I'm
guessing?

Is there a way to make the component //cc/base but change the library name? 

gn help output_name suggests that maybe you can do:
  component("base") {
    output_name = "cc_base"
  }

[chrishtr, 2017/03/16 02:00:35]

Yes.
b
Nice. That did the trick.

   sources = [
+    "base_export.h",
     "completion_event.h",
     "container_util.h",
     "contiguous_container.cc",
@@ -53,9 +52,9 @@ cc_source_set("base") {
     "//base",
     "//base/third_party/dynamic_annotations",
     "//skia",
-    "//ui/gfx",
+    "//ui/gfx:geometry_skia",
     "//ui/gfx/geometry",
   ]
 
-  defines = [ "CC_IMPLEMENTATION=1" ]
+  defines = [ "CC_BASE_IMPLEMENTATION=1" ]
 }