Implement HiDPI support in Pepper dev interface

webkit/plugins/ppapi/ppb_graphics_2d_impl.h

Index: webkit/plugins/ppapi/ppb_graphics_2d_impl.h
diff --git a/webkit/plugins/ppapi/ppb_graphics_2d_impl.h b/webkit/plugins/ppapi/ppb_graphics_2d_impl.h
index 3b8ce9a87162113dfe7a1ff48072889c53b9a3a2..42b99c6e4df283507df6ab9dd3cc913938bd679a 100644
--- a/webkit/plugins/ppapi/ppb_graphics_2d_impl.h
+++ b/webkit/plugins/ppapi/ppb_graphics_2d_impl.h
@@ -50,6 +50,8 @@ class PPB_Graphics2D_Impl : public ::ppapi::Resource,
                       const PP_Point* amount) OVERRIDE;
   virtual void ReplaceContents(PP_Resource image_data) OVERRIDE;
   virtual int32_t Flush(PP_CompletionCallback callback) OVERRIDE;
+  virtual bool SetScale(float scale) OVERRIDE;
+  virtual float GetScale() OVERRIDE { return scale_; }

[brettw, 2012/06/19 20:21:27]

No inline virtual functions. This should throw an error in clang, I think.

[Josh Horwich, 2012/06/19 23:56:15]

Done.

(Clang didn't complain, FWIW, but I moved it into the .cc file for consistency.)

 
   bool ReadImageData(PP_Resource image, const PP_Point* top_left);
 
@@ -184,6 +186,10 @@ class PPB_Graphics2D_Impl : public ::ppapi::Resource,
   // This allows us to do more optimized painting in some cases.
   bool is_always_opaque_;
 
+  // Set to the scale between what the plugin considers to be one pixel and one
+  // DIP
+  float scale_;
+
   base::WeakPtrFactory<PPB_Graphics2D_Impl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics2D_Impl);