pdfviewer: /Pattern color space, uses the matrix of the last content stream, not the global matrix.

experimental/PdfViewer/SkPdfBasics.h

 #ifndef __DEFINED__SkPdfBasics
 #define __DEFINED__SkPdfBasics
 
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkPdfConfig.h"
 
 #include <iostream>
 #include <cstdio>
 #include <map>
@@ skipping 95 matching lines @@
 //    TABLE 4.2 Device-independent graphics state parameters
 /*
  * CTM           array             The current transformation matrix, which maps positions from user
                                 coordinates to device coordinates (see Section 4.2, “Coordinate Sys-
                                 tems”). This matrix is modified by each application of the coordi-
                                 nate transformation operator, cm. Initial value: a matrix that
                                 transforms default user coordinates to device coordinates.
  */
     SkMatrix fCTM;
 
+    SkMatrix fContentStreamMatrix;
+
 /*
 clipping path (internal)        The current clipping path, which defines the boundary against
                                 which all output is to be cropped (see Section 4.4.3, “Clipping Path
                                 Operators”). Initial value: the boundary of the entire imageable
                                 portion of the output page.
  */
     // Clip that is applied after the drawing is done!!!
     bool                fHasClipPathToApply;
     SkPath              fClipPath;
 
@@ skipping 263 matching lines @@
     kPartial_PdfResult,
     kNYI_PdfResult,
     kIgnoreError_PdfResult,
     kError_PdfResult,
     kUnsupported_PdfResult,
 
     kCount_PdfResult
 };
 
 #endif  // __DEFINED__SkPdfBasics