mash: Have chrome set itself as the app list presenter.

ui/app_list/presenter/BUILD.gn

Index: ui/app_list/presenter/BUILD.gn
diff --git a/ui/app_list/presenter/BUILD.gn b/ui/app_list/presenter/BUILD.gn
index 521ab5ed39ad48bea5e9e196a48669d7d56b4faf..2f7b0e7485775d62836c96b05f392ec37fdc2393 100644
--- a/ui/app_list/presenter/BUILD.gn
+++ b/ui/app_list/presenter/BUILD.gn
@@ -8,8 +8,23 @@ import("//testing/test.gni")
 
 assert(use_aura)
 
+mojom("mojom") {
+  sources = [
+    "app_list_presenter.mojom",
+  ]
+  deps = [
+    "//services/ui/public/interfaces",
+  ]
+
+  export_class_attribute = "APP_LIST_PRESENTER_EXPORT"

[mfomitchev, 2016/12/12 22:59:49]

Cool. Are these new in mojo? Are they actually necessary for this to work
properly?

[msw, 2016/12/12 23:47:54]

I don't know how new they are; but they fixed my component build; which
otherwise failed to export the interface to targets that include the 'presenter'
component target below (despite the inclusion of this target in its
public_deps). Yuzhu helped me with this; thanks Yuzhu!

[mfomitchev, 2016/12/13 01:14:13]

Thanks for the explanation.

+  export_define = "APP_LIST_PRESENTER_IMPLEMENTATION=1"
+  export_header = "ui/app_list/presenter/app_list_presenter_export.h"
+}
+
 component("presenter") {
   sources = [
+    "app_list.cc",
+    "app_list.h",
     "app_list_presenter.h",
     "app_list_presenter_delegate.cc",
     "app_list_presenter_delegate.h",
@@ -24,7 +39,9 @@ component("presenter") {
   defines = [ "APP_LIST_PRESENTER_IMPLEMENTATION" ]
 
   public_deps = [
+    ":mojom",
     "//base",
+    "//mojo/public/cpp/bindings",
     "//ui/app_list",
     "//ui/aura",
     "//ui/compositor",
@@ -37,15 +54,6 @@ component("presenter") {
   ]
 }
 
-mojom("mojom") {
-  sources = [
-    "app_list_presenter.mojom",
-  ]
-  deps = [
-    "//services/ui/public/interfaces",
-  ]
-}
-
 static_library("test_support") {
   sources = [
     "test/app_list_presenter_impl_test_api.cc",