pdfviewer: debug code for crash

experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp

Index: experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp
===================================================================
--- experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp	(revision 10543)
+++ experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.cpp	(working copy)
@@ -929,6 +929,11 @@
 }
 
 bool SkPdfNativeTokenizer::readTokenCore(PdfToken* token) {
+    SkPdfObject obj;
+#ifdef PDF_TRACE_READ_TOKEN
+    static int read_op = 0;
+    int last;
+#endif
     token->fKeyword = NULL;
     token->fObject = NULL;
 
@@ -937,8 +942,18 @@
         return false;
     }
 
-    SkPdfObject obj;
+#ifdef PDF_TRACE_READ_TOKEN
+    printf("BEFORE the read: %i\n", read_op);
+    last = read_op;
+#endif
+
     fUncompressedStream = nextObject(0, fUncompressedStream, fUncompressedStreamEnd, &obj, fAllocator, fDoc);
+#ifdef PDF_TRACE_READ_TOKEN
+    printf("BEFORE the read: %i\n", read_op);
+    if (last != read_op) {
+        printf("break; // memory override");
+    }
+#endif
 
     // If it is a keyword, we will only get the pointer of the string
     if (obj.type() == SkPdfObject::kKeyword_PdfObjectType) {
@@ -953,7 +968,6 @@
     }
 
 #ifdef PDF_TRACE_READ_TOKEN
-    static int read_op = 0;
     read_op++;
 #if 0
     if (548 == read_op) {