(upload draf code for backup) pdfviewer: improve memory, son't allocate extra buffers, and put the …

experimental/PdfViewer/SkPdfConfig.h

Index: experimental/PdfViewer/SkPdfConfig.h
===================================================================
--- experimental/PdfViewer/SkPdfConfig.h	(revision 10235)
+++ experimental/PdfViewer/SkPdfConfig.h	(working copy)
@@ -2,6 +2,7 @@
 #define __DEFINED__SkPdfConfig
 
 //#define PDF_TRACE
+//#define PDF_TRACE_READ_TOKEN
 //#define PDF_TRACE_DIFF_IN_PNG
 //#define PDF_DEBUG_NO_CLIPING
 //#define PDF_DEBUG_NO_PAGE_CLIPING
@@ -16,4 +17,24 @@
 #define SkTraceRect(a,b)
 #endif
 
+struct NotOwnedString {
+    const unsigned char* fBuffer;
+    size_t fBytes;
+
+    static void init(NotOwnedString* str) {
+        str->fBuffer = NULL;
+        str->fBytes = 0;
+    }
+
+    static void init(NotOwnedString* str, const char* sz) {
+        str->fBuffer = (const unsigned char*)sz;
+        str->fBytes = strlen(sz);
+    }
+
+    bool equals(const char* sz) {
+        return strncmp((const char*)fBuffer, sz, fBytes) == 0 && fBytes == strlen(sz);
+
+    }
+};
+
 #endif  // __DEFINED__SkPdfConfig