Move Skia features bits to the end of the "skia" target.

Change-Id: I608902d02b37cb0acda5327604c5404422fcf8b0
Reviewed-on: https://pdfium-review.googlesource.com/c/44916
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>

skia/BUILD.gn

diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index d198fad..e171d9f 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -335,13 +335,6 @@
     ]
   }
 
-  if (skia_support_pdf) {
-    deps += [ "//third_party/sfntly" ]
-    sources += skia_pdf_sources
-  } else {
-    sources += [ "//third_party/skia/src/pdf/SkDocument_PDF_None.cpp" ]
-  }
-
   if (is_android && !is_debug) {
     configs -= [ "//build/config/compiler:default_optimization" ]
     configs += [ "//build/config/compiler:optimize_max" ]
@@ -360,6 +353,13 @@
     # To disable warning "CGContextSelectFont' is deprecated"
     cflags = [ "-Wno-deprecated-declarations" ]
   }
+
+  if (skia_support_pdf) {
+    deps += [ "//third_party/sfntly" ]
+    sources += skia_pdf_sources
+  } else {
+    sources += [ "//third_party/skia/src/pdf/SkDocument_PDF_None.cpp" ]
+  }
 }
 
 # Template for things that are logically part of :skia, but need to be split out