Deal with ca and CA transparency operators in pdf. add comments to generated classes.

experimental/PdfViewer/SkPdfType3ShadingDictionary_autogen.h

Index: experimental/PdfViewer/SkPdfType3ShadingDictionary_autogen.h
===================================================================
--- experimental/PdfViewer/SkPdfType3ShadingDictionary_autogen.h	(revision 9684)
+++ experimental/PdfViewer/SkPdfType3ShadingDictionary_autogen.h	(working copy)
@@ -5,6 +5,7 @@
 #include "SkPdfArray_autogen.h"
 #include "SkPdfShadingDictionary_autogen.h"
 
+// Additional entries specific to a type 3 shading dictionary
 class SkPdfType3ShadingDictionary : public SkPdfShadingDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kType3ShadingDictionary_SkPdfObjectType;}
@@ -38,6 +39,16 @@
 
   SkPdfType3ShadingDictionary& operator=(const SkPdfType3ShadingDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Required) An array of six numbers [ x0 y0 r0 x1 y1 r1 ] specifying the centers and
+ *  radii of the starting and ending circles, expressed in the shading's target coor-
+ *  dinate space. The radii r0 and r1 must both be greater than or equal to 0. If one
+ *  radius is 0, the corresponding circle is treated as a point; if both are 0, nothing is
+ *  painted.
+**/
+  bool has_Coords() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Coords", "", NULL));
+  }
+
   SkPdfArray Coords() const {
     SkPdfArray ret;
     if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Coords", "", &ret)) return ret;
@@ -45,6 +56,16 @@
     return SkPdfArray();
   }
 
+/** (Optional) An array of two numbers [ t0 t1 ] specifying the limiting values of a
+ *  parametric variable t. The variable is considered to vary linearly between these
+ *  two values as the color gradient varies between the starting and ending circles.
+ *  The variable t becomes the input argument to the color function(s). Default
+ *  value: [0.0 1.0].
+**/
+  bool has_Domain() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", NULL));
+  }
+
   SkPdfArray Domain() const {
     SkPdfArray ret;
     if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", &ret)) return ret;
@@ -52,6 +73,18 @@
     return SkPdfArray();
   }
 
+/** (Required) A 1-in, n-out function or an array of n 1-in, 1-out functions (where n
+ *  is the number of color components in the shading dictionary's color space). The
+ *  function(s) are called with values of the parametric variable t in the domain de-
+ *  fined by the shading dictionary's Domain entry. Each function's domain must be
+ *  a superset of that of the shading dictionary. If the value returned by the function
+ *  for a given color component is out of range, it will be adjusted to the nearest
+ *  valid value.
+**/
+  bool has_Function() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", NULL));
+  }
+
   SkPdfFunction Function() const {
     SkPdfFunction ret;
     if (FunctionFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", &ret)) return ret;
@@ -59,6 +92,14 @@
     return SkPdfFunction();
   }
 
+/** (Optional) An array of two boolean values specifying whether to extend the
+ *  shading beyond the starting and ending circles, respectively. Default value:
+ *  [false false].
+**/
+  bool has_Extend() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Extend", "", NULL));
+  }
+
   SkPdfArray Extend() const {
     SkPdfArray ret;
     if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Extend", "", &ret)) return ret;