Update ANGLE's translator to Bison 3.

BUG=angle:462

Change-Id: I2c1c18027dee1c3b4efb87374caaadbf58367841
Reviewed-on: https://chromium-review.googlesource.com/236930
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
diff --git a/src/compiler/preprocessor/Tokenizer.l b/src/compiler/preprocessor/Tokenizer.l
index 2a77b90..89cb5c8 100644
--- a/src/compiler/preprocessor/Tokenizer.l
+++ b/src/compiler/preprocessor/Tokenizer.l
@@ -267,7 +267,9 @@
 
 namespace pp {
 
-Tokenizer::Tokenizer(Diagnostics *diagnostics) : mHandle(0)
+Tokenizer::Tokenizer(Diagnostics *diagnostics)
+    : mHandle(0),
+      mMaxTokenSize(256)
 {
     mContext.diagnostics = diagnostics;
 }