MacViews: Move content::AcceleratedWidget to new component, ui/accelerated_widget_mac

ui/compositor/BUILD.gn

Index: ui/compositor/BUILD.gn
diff --git a/ui/compositor/BUILD.gn b/ui/compositor/BUILD.gn
index 38b79ade675cd1a9c73bd73d447e14a08269bd41..f9e83493353decaddf8ddead900ceb92b052df52 100644
--- a/ui/compositor/BUILD.gn
+++ b/ui/compositor/BUILD.gn
@@ -43,6 +43,18 @@ component("compositor") {
     "layer_tree_owner.cc",
     "layer_tree_owner.h",
     "layer_type.h",
+    "mac/accelerated_widget_mac.mm",
+    "mac/accelerated_widget_mac.h",
+    "mac/io_surface_context_mac.h",
+    "mac/io_surface_context_mac.mm",
+    "mac/io_surface_layer_mac.h",
+    "mac/io_surface_layer_mac.mm",
+    "mac/io_surface_texture_mac.h",
+    "mac/io_surface_texture_mac.mm",
+    "mac/software_layer.h",
+    "mac/software_layer.mm",
+    "mac/surface_handle_types_mac.cc",
+    "mac/surface_handle_types_mac.h",
     "reflector.h",
     "scoped_animation_duration_scale_mode.cc",
     "scoped_animation_duration_scale_mode.h",
@@ -75,6 +87,17 @@ component("compositor") {
       "//third_party/angle:libGLESv2",
     ]
   }
+
+  if (is_mac) {

[ccameron, 2014/11/26 18:36:51]

What is base needed for (events is latency_info, I just can't remember the dep
there)?

[tapted, 2014/11/27 02:50:33]

ScopedCAActionDisabler is in ui/base, but it can be inlined. I think this dep
was only essential while SoftwareLayer was also in ui/base, so it can be removed
if we rely on the inlining. Done.

[tapted, 2014/11/27 05:58:41]

Actually, `gn check` complains if I remove the //ui/base dependency, so I've
brought it back. 

+    deps += [
+      "//ui/base",
+      "//ui/events",
+    ]
+
+    libs = [
+      "QuartzCore.framework",
+    ]
+  }
 }
 
 source_set("test_support") {