Prepare fullscreen_chromeos.cc to be used for ozone builds.

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 9a51a0f8330f4c658639c9ffab4bb7fbc2a2b71e..0b8da5b9c04339e1888f5d4eb9eb54859bb772ac 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -381,7 +381,6 @@ split_static_library("browser") {
     "file_select_helper.h",
     "file_select_helper_mac.mm",
     "fullscreen.h",
-    "fullscreen_chromeos.cc",
     "fullscreen_mac.mm",
     "fullscreen_win.cc",
     "geolocation/chrome_access_token_store.cc",
@@ -3506,6 +3505,10 @@ split_static_library("browser") {
     }
   }
 
+  if (is_chromeos || use_ozone) {
+    sources += [ "fullscreen_chromeos_or_ozone.cc" ]

[rjkroege, 2016/10/26 18:50:16]

this is really weird naming. I'd like there be another way.

[fwang, 2016/10/31 11:38:49]

I'd like to understand what we want here. We have three possibilities:
chromeos=0 use_ozone=1, chromeos=1 use_ozone=0 and chromeos=1 use_ozone=1. Which
fullscreen_* version will be used in each case?
I would have think something like fullscreen_ozone when use_ozone=1 and
fullscreen_chromeos in the remaining case but then Robert suggested to merge
them into a single file, which seems confusing to me. Do we want some kind of
fullscreen_generic or something?

+  }
+
   if (android_java_ui) {
     deps += [ "//third_party/WebKit/public:android_mojo_bindings" ]
   }