PDF: Add (low-memory) SkPDFBitmap class

src/pdf/SkDeflateWStream.h

Index: src/pdf/SkDeflateWStream.h
diff --git a/src/pdf/SkDeflateWStream.h b/src/pdf/SkDeflateWStream.h
new file mode 100644
index 0000000000000000000000000000000000000000..ebf2d576f5cb513fc90e54fa0c51554c09752a17
--- /dev/null
+++ b/src/pdf/SkDeflateWStream.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkDeflateWStream_DEFINED
+#define SkDeflateWStream_DEFINED
+
+#include "SkStream.h"
+

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

Might be nice to explain what it does here.  At least, // See
http://en.wikipedia.org/wiki/DEFLATE

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

Done.

+class SkDeflateWStream : public SkWStream {
+public:
+    SkDeflateWStream(SkWStream*);
+    ~SkDeflateWStream();
+    bool write(const void*, size_t) SK_OVERRIDE;
+    void flush() SK_OVERRIDE;
+    size_t bytesWritten() const SK_OVERRIDE;
+
+private:
+    struct Impl;
+    Impl* fImpl;

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

Ought to be able to SkAutoTDelete<Impl> fImpl if your destructor is defined in
the .cpp ?

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

Done.

+};
+
+#endif  // SkDeflateWStream_DEFINED