Disable JBIG2 cache; prevent data corruption

core/src/fxcodec/jbig2/JBig2_Context.cpp

Index: core/src/fxcodec/jbig2/JBig2_Context.cpp
diff --git a/core/src/fxcodec/jbig2/JBig2_Context.cpp b/core/src/fxcodec/jbig2/JBig2_Context.cpp
index bd2421e3f94715255a25093a2ad118e342e2afd4..2e2cf9eeee264ae06e1b8c3dc81fd3243bbe3c04 100644
--- a/core/src/fxcodec/jbig2/JBig2_Context.cpp
+++ b/core/src/fxcodec/jbig2/JBig2_Context.cpp
@@ -22,6 +22,9 @@
 // list keeps track of the freshness of entries, with freshest ones
 // at the front. Even a tiny cache size like 2 makes a dramatic
 // difference for typical JBIG2 documents.
+//
+// Disabled until we can figure out how to clear cache between documents.
+// https://code.google.com/p/pdfium/issues/detail?id=207
 static const int kSymbolDictCacheMaxSize = 2;

[Lei Zhang, 2015/10/04 06:15:37]

Uh, fail.

 
 CJBig2_Context* CJBig2_Context::CreateContext(