Revert "Remove SkRefPtr" - r7021

samplecode/ still needs to be updated.

Review URL: https://codereview.appspot.com/7032048

git-svn-id: http://skia.googlecode.com/svn/trunk@7022 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pdf/SkPDFPage.cpp b/src/pdf/SkPDFPage.cpp
index a18beb1..717f435 100644
--- a/src/pdf/SkPDFPage.cpp
+++ b/src/pdf/SkPDFPage.cpp
@@ -15,7 +15,6 @@
 SkPDFPage::SkPDFPage(SkPDFDevice* content)
     : SkPDFDict("Page"),
       fDevice(content) {
-  SkSafeRef(content);
 }
 
 SkPDFPage::~SkPDFPage() {}
@@ -33,8 +32,10 @@
             }
         }
 
-        SkAutoTUnref<SkStream> content(fDevice->content());
-        fContentStream.reset(new SkPDFStream(content.get()));
+        SkRefPtr<SkStream> content = fDevice->content();
+        content->unref();  // SkRefPtr and content() both took a reference.
+        fContentStream = new SkPDFStream(content.get());
+        fContentStream->unref();  // SkRefPtr and new both took a reference.
         insert("Contents", new SkPDFObjRef(fContentStream.get()))->unref();
     }
     catalog->addObject(fContentStream.get(), firstPage);
@@ -66,9 +67,12 @@
     // one child.
     static const int kNodeSize = 8;
 
-    SkAutoTUnref<SkPDFName> kidsName(new SkPDFName("Kids"));
-    SkAutoTUnref<SkPDFName> countName(new SkPDFName("Count"));
-    SkAutoTUnref<SkPDFName> parentName(new SkPDFName("Parent"));
+    SkRefPtr<SkPDFName> kidsName = new SkPDFName("Kids");
+    kidsName->unref();  // SkRefPtr and new both took a reference.
+    SkRefPtr<SkPDFName> countName = new SkPDFName("Count");
+    countName->unref();  // SkRefPtr and new both took a reference.
+    SkRefPtr<SkPDFName> parentName = new SkPDFName("Parent");
+    parentName->unref();  // SkRefPtr and new both took a reference.
 
     // curNodes takes a reference to its items, which it passes to pageTree.
     SkTDArray<SkPDFDict*> curNodes;
@@ -91,9 +95,11 @@
             }
 
             SkPDFDict* newNode = new SkPDFDict("Pages");
-            SkAutoTUnref<SkPDFObjRef> newNodeRef(new SkPDFObjRef(newNode));
+            SkRefPtr<SkPDFObjRef> newNodeRef = new SkPDFObjRef(newNode);
+            newNodeRef->unref();  // SkRefPtr and new both took a reference.
 
-            SkAutoTUnref<SkPDFArray> kids(new SkPDFArray);
+            SkRefPtr<SkPDFArray> kids = new SkPDFArray;
+            kids->unref();  // SkRefPtr and new both took a reference.
             kids->reserve(kNodeSize);
 
             int count = 0;