pdfviewer: more code comments + concat the pdf matrix with the existing matrix in canvas, instead o…

experimental/PdfViewer/SkPdfReporter.cpp

Index: experimental/PdfViewer/SkPdfReporter.cpp
===================================================================
--- experimental/PdfViewer/SkPdfReporter.cpp	(revision 11730)
+++ experimental/PdfViewer/SkPdfReporter.cpp	(working copy)
@@ -28,7 +28,11 @@
 }
 
 // TODO(edisonn): add a flag to set the minimum warning level
+// TODO(edisonn): get the address in the file, and report it.
+// TODO(edisonn): build a html file based on warnings which would showe the original pdf
+//                content, with tooltips where warnings/errors were reported.
 
+
 #ifdef PDF_REPORT
 void SkPdfReport(SkPdfIssueSeverity sev, SkPdfIssue issue,
                  const char* context,