[Chromecast] Correct some Cast dependencies in //chrome/browser/ui.

chrome/browser/ui/BUILD.gn

Index: chrome/browser/ui/BUILD.gn
diff --git a/chrome/browser/ui/BUILD.gn b/chrome/browser/ui/BUILD.gn
index 18f78d41da2e5887d840e612bb1497d1a4ecf7b9..68bf4916471538c53c4f627d9967ba2bca9ab84b 100644
--- a/chrome/browser/ui/BUILD.gn
+++ b/chrome/browser/ui/BUILD.gn
@@ -3323,6 +3323,14 @@ split_static_library("ui") {
   }
 
   if (is_chromecast && is_linux) {
+    if (is_cast_desktop_build) {

[brettw, 2016/09/30 21:32:01]

Does your build set use_x11? If so, can we just move these to the use_x11 block
above?

[slan, 2016/10/03 23:42:57]

It doesn't. So I moved the violating source files inside a use_x11 block,
preventing the need for these additional dependencies altogether.

+      deps += [
+        "//ui/base/x",
+        "//ui/events/devices/x11",
+        "//ui/events/keycodes:x11",
+      ]
+    }
+
     # The Chromecast build sets toolkit_views to false but some targets in the
     # build still reference views. But this target is referenced on the Cast
     # bot (though not currently compiled) but is configured as Linux. This
@@ -3330,9 +3338,6 @@ split_static_library("ui") {
     deps += [
       "//chrome/browser/media/router",
       "//components/web_modal",
-      "//ui/base/x",
-      "//ui/events/devices/x11",
-      "//ui/events/keycodes:x11",
       "//ui/views",
       "//ui/views/controls/webview",
     ]