Revert of Combine PDF plugin into the Chromium binary.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index ca8267cc296066dbaf12a9c56d1c72b2b70d935c..b323084135768a3d6320fb82aff91963cfd2a94f 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -150,8 +150,10 @@
       # TODO(GYP) some stuff from GYP including chrome_multiple_dll.
     }
 
-    if (enable_plugins) {
-      deps += [ "//pdf" ]
+    if (!is_mac) {
+      # On Mac this is done in chrome_dll.gypi.
+      datadeps += [ "//pdf" ]
+      # TODO(GYP) pdf linux symbols
     }
   }
 }  # !is_android
@@ -234,10 +236,6 @@
       #  'includes': [ 'chrome_dll_bundle.gypi' ],
       #}],
       # TODO(GYP) Lots of other stuff in the OS=="mac" block.
-    }
-
-    if (enable_plugins) {
-      deps += [ "//pdf" ]
     }
   }
 }