Add PDFium build_overrides

build_overrides/pdfium.gni

Index: build_overrides/pdfium.gni
diff --git a/third_party/leakcanary/config.gni b/build_overrides/pdfium.gni
similarity index 65%
copy from third_party/leakcanary/config.gni
copy to build_overrides/pdfium.gni
index f6adcddf3ecc4442c7793666dfeecaf1f108fea8..d492919a6f549216cdbb9b5ed246d1902ed7b062 100644
--- a/third_party/leakcanary/config.gni
+++ b/build_overrides/pdfium.gni
@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-declare_args() {
-  enable_leakcanary = false
-}
+import("//third_party/pdfium/pdfium.gni")
+
+pdf_enable_v8 = true
+pdf_enable_xfa = false

[Nico, 2016/04/27 16:44:12]

do you want to have this set to false on your bots? or do you want this to be an
arg in pdfium builds?

[dsinclair, 2016/04/27 16:47:41]

This is the Chromium side change, our bots don't use Chromium to test so this
shouldn't effect our bot runs. Yea?

[Nico, 2016/04/27 16:52:15]

ooh I see. Then shouldn't the cr side not include the gni file but just set the
values we want for everything in chromium? And shouldn't the pdfium side not use
an include of pdfium.gni but move the contents of pdfium.gni to the new file? We
probably don't want all these declare_args in a Chromium build, right?