Revert of printing::Metafile: Simplify OS_MACOSX-specific code path

printing/metafile.h

Index: printing/metafile.h
diff --git a/printing/metafile.h b/printing/metafile.h
index 98eaa39702f7064171dc255d740e6c260168b5da..2f208edc267627bbe8ef241a831b8733ae65d316 100644
--- a/printing/metafile.h
+++ b/printing/metafile.h
@@ -16,6 +16,10 @@
 
 #if defined(OS_WIN)
 #include <windows.h>
+#elif defined(OS_MACOSX)
+#include <ApplicationServices/ApplicationServices.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include "base/mac/scoped_cftyperef.h"
 #endif
 
 namespace base {
@@ -32,6 +36,36 @@
 // This class plays metafiles from data stream (usually PDF or EMF).
 class PRINTING_EXPORT MetafilePlayer {
  public:
+#if defined(OS_MACOSX)
+  // |shrink_to_fit| specifies whether the output should be shrunk to fit a
+  // destination page if the source PDF is bigger than the destination page in
+  // any dimension. If this is false, parts of the source PDF page that lie
+  // outside the bounds will be clipped.
+  // |stretch_to_fit| specifies whether the output should be stretched to fit
+  // the destination page if the source page size is smaller in all dimensions.
+  // |center_horizontally| specifies whether the output (after any scaling is
+  // done) should be centered horizontally within the destination page.
+  // |center_vertically| specifies whether the output (after any scaling is
+  // done) should be centered vertically within the destination page.
+  // Note that all scaling preserves the original aspect ratio of the page.
+  // |autorotate| specifies whether the source PDF should be autorotated to fit
+  // on the destination page.
+  struct MacRenderPageParams {
+    MacRenderPageParams()
+        : shrink_to_fit(false),
+          stretch_to_fit(false),
+          center_horizontally(false),
+          center_vertically(false),
+          autorotate(false) {
+    }
+
+    bool shrink_to_fit;
+    bool stretch_to_fit;
+    bool center_horizontally;
+    bool center_vertically;
+    bool autorotate;
+  };
+#endif  // defined(OS_MACOSX)
   MetafilePlayer();
   virtual ~MetafilePlayer();
 
@@ -41,6 +75,15 @@
   // issue with some printers. See Emf::Record::SafePlayback implementation for
   // details.
   virtual bool SafePlayback(skia::NativeDrawingContext hdc) const = 0;
+
+#elif defined(OS_MACOSX)
+  // Renders the given page into |rect| in the given context.
+  // Pages use a 1-based index. The rendering uses the arguments in
+  // |params| to determine scaling, translation, and rotation.
+  virtual bool RenderPage(unsigned int page_number,
+                          skia::NativeDrawingContext context,
+                          const CGRect rect,
+                          const MacRenderPageParams& params) const = 0;
 #endif  // if defined(OS_WIN)
 
   // Populates the buffer with the underlying data. This function should ONLY be