PDF: Add (low-memory) SkPDFBitmap class

src/pdf/SkPDFImage.cpp

Index: src/pdf/SkPDFImage.cpp
diff --git a/src/pdf/SkPDFImage.cpp b/src/pdf/SkPDFImage.cpp
index 3c0d850fda9d1d0273e280d13452c3a239aa521a..85813553694a02e668b73910d12858e8cc628f78 100644
--- a/src/pdf/SkPDFImage.cpp
+++ b/src/pdf/SkPDFImage.cpp
@@ -12,6 +12,7 @@
 #include "SkColorPriv.h"
 #include "SkData.h"
 #include "SkFlate.h"
+#include "SkPDFBitmap.h"
 #include "SkPDFCatalog.h"
 #include "SkPixelRef.h"
 #include "SkRect.h"
@@ -723,6 +724,10 @@ SkPDFObject* SkPDFCreateImageObject(
         const SkBitmap& bitmap,
         const SkIRect& subset,
         SkPicture::EncodeBitmap encoder) {
+    SkPDFObject* pdfBitmap = SkPDFBitmap::Create(bitmap, subset);
+    if (pdfBitmap) {

[mtklein, 2015/02/12 00:21:46]

Even

if (SkPDFObject* pdfBitmap = SkPDFBitmap::Create(bitmap, subset)) {
    return pdfBitmap;
}

[hal.canary, 2015/02/12 21:28:03]

Done.

+        return pdfBitmap;
+    }
 #if 0  // reenable when we can figure out the JPEG colorspace
     if (SkIRect::MakeWH(bitmap.width(), bitmap.height()) == subset) {
         SkAutoTUnref<SkData> encodedData(ref_encoded_data(bitmap));