Revert "update chromium to version 52.0.2725.0"

This reverts commit eb469a235bdf75e9c5280d1289253b5e013d5e49.

Change-Id: Id4e1bd6036939acc36f755ee6704d2d174285bcf
diff --git a/prebuilt/app/Chromium/32bit/ChromePublic.apk b/prebuilt/app/Chromium/32bit/ChromePublic.apk
index 02ca899..7dbef91 100644
--- a/prebuilt/app/Chromium/32bit/ChromePublic.apk
+++ b/prebuilt/app/Chromium/32bit/ChromePublic.apk
Binary files differ
diff --git a/prebuilt/app/Chromium/64bit/ChromePublic.apk b/prebuilt/app/Chromium/64bit/ChromePublic.apk
index 977a604..1fedcfa 100644
--- a/prebuilt/app/Chromium/64bit/ChromePublic.apk
+++ b/prebuilt/app/Chromium/64bit/ChromePublic.apk
Binary files differ