Restructuring of PdfViewer code.

experimental/PdfViewer/src/SkPdfOps.h

Index: experimental/PdfViewer/src/SkPdfOps.h
diff --git a/experimental/PdfViewer/src/SkPdfOps.h b/experimental/PdfViewer/src/SkPdfOps.h
new file mode 100644
index 0000000000000000000000000000000000000000..1712e208120a28be631500e9b747b19d04eabb80
--- /dev/null
+++ b/experimental/PdfViewer/src/SkPdfOps.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPdfOps_DEFINED
+#define SkPdfOps_DEFINED
+
+// Signature for all the operations available in pdf.
+typedef SkPdfResult (*PdfOperatorRenderer)(SkPdfContext*, SkCanvas*, SkPdfTokenLooper**);
+
+// FIXME (scroggo): Make a cleaner interface for this, and avoid statics and globals.
+// Map of string to function pointer for all known draw operations.
+extern SkTDict<PdfOperatorRenderer> gPdfOps;
+
+#endif // SkPdfOps_DEFINED