Implemented transparent gradients

src/pdf/SkPDFUtils.cpp

Index: src/pdf/SkPDFUtils.cpp
diff --git a/src/pdf/SkPDFUtils.cpp b/src/pdf/SkPDFUtils.cpp
index 90e2058d24f4bd601f76c440ccb28b408233ee42..cac1c7faada5c2c4128e90428efdc6aa5cada1c6 100644
--- a/src/pdf/SkPDFUtils.cpp
+++ b/src/pdf/SkPDFUtils.cpp
@@ -16,6 +16,17 @@
 #include "SkString.h"
 #include "SkPDFTypes.h"
 
+//static
+SkPDFArray* SkPDFUtils::RectToArray(const SkRect& rect) {
+    SkPDFArray* result = new SkPDFArray();
+    result->reserve(4);
+    result->appendScalar(rect.fLeft);
+    result->appendScalar(rect.fTop);
+    result->appendScalar(rect.fRight);
+    result->appendScalar(rect.fBottom);
+    return result;
+}
+
 // static
 SkPDFArray* SkPDFUtils::MatrixToArray(const SkMatrix& matrix) {
     SkScalar values[6];
@@ -44,6 +55,19 @@ void SkPDFUtils::AppendTransform(const SkMatrix& matrix, SkWStream* content) {
     content->writeText("cm\n");
 }
 
+//static
+SkPDFArray* SkPDFUtils::CreateFullProcSetsArray() {
+    const char procs[][7] = {"PDF", "Text", "ImageB", "ImageC", "ImageI"};
+    SkPDFArray* procSets = new SkPDFArray();
+
+    procSets->reserve(SK_ARRAY_COUNT(procs));
+    for (size_t i = 0; i < SK_ARRAY_COUNT(procs); i++) {
+        procSets->appendName(procs[i]);
+    }
+
+    return procSets;
+}
+
 // static
 void SkPDFUtils::MoveTo(SkScalar x, SkScalar y, SkWStream* content) {
     SkPDFScalar::Append(x, content);