Refactor mac printing workflow.

To support print preview, made code changes to create a single metafile for the entire printing document.

BUG=64121
TEST=printing works after code changes.

Review URL: http://codereview.chromium.org/5892002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69885 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 3 deletions

diff --git a/printing/pdf_metafile_mac.h b/printing/pdf_metafile_mac.h
index 8872d99..38be634 100644
--- a/printing/pdf_metafile_mac.h
+++ b/printing/pdf_metafile_mac.h
@@ -13,6 +13,8 @@
 
 namespace gfx {
 class Rect;
+class Size;
+class Point;
 }
 class FilePath;
 
@@ -38,9 +40,11 @@ class PdfMetafile {
   // Initializes a copy of metafile from PDF data. Returns true on success.
   bool Init(const void* src_buffer, uint32 src_buffer_size);
 
-  // Prepares a new pdf page with the given width and height and a scale
-  // factor to use for the drawing.
-  void StartPage(double width, double height, double scale_factor);
+  // Prepares a new pdf page at specified |content_origin| with the given
+  // |page_size| and a |scale_factor| to use for the drawing.
+  CGContextRef StartPage(const gfx::Size& page_size,
+                         const gfx::Point& content_origin,
+                         const float& scale_factor);
 
   // Closes the current page.
   void FinishPage();