This change implements a first pass in the effort to remove the dependency of PlatformDevice within Chrome. The Skia library now provides multiple back-ends for the SkDevice class, so PlatformDevice's inheritance of SkDevice, and the assumption of instances of PlatformDevice limits the use of these new back-ends.

A new set of helper functions is provided for the PlatformDevice entry points.  Upon construction of a PlatformDevice, a pointer to the interface is cached in the parent SkDevice's SkMetaData.  The new helper functions forward calls to the interface cached in the metadata.

BUG=NONE
TEST=NONE
Review URL: http://codereview.chromium.org/7019013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86625 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 2 insertions, 4 deletions

diff --git a/printing/metafile.h b/printing/metafile.h
index c155fbc..84c0556 100644
--- a/printing/metafile.h
+++ b/printing/metafile.h
@@ -25,9 +25,7 @@ class Rect;
 class Size;
 }
 
-namespace skia {
-class PlatformDevice;
-}
+class SkDevice;
 
 #if defined(OS_CHROMEOS)
 namespace base {
@@ -56,7 +54,7 @@ class Metafile {
   // This method calls StartPage and then returns an appropriate
   // VectorPlatformDevice implementation bound to the context created by
   // StartPage or NULL on error.
-  virtual skia::PlatformDevice* StartPageForVectorCanvas(
+  virtual SkDevice* StartPageForVectorCanvas(
       const gfx::Size& page_size,
       const gfx::Rect& content_area,
       const float& scale_factor) = 0;