CL removing inheritance of SkDevice from PlatformDevice. Flavours of PlatformDevice classes now ...

skia/ext/platform_device_mac.cc

Index: skia/ext/platform_device_mac.cc
===================================================================
--- skia/ext/platform_device_mac.cc	(revision 97282)
+++ skia/ext/platform_device_mac.cc	(working copy)
@@ -22,10 +22,9 @@
   return NULL;
 }
 
-PlatformDevice::PlatformDevice(const SkBitmap& bitmap)
-    : SkDevice(bitmap) {
-  SetPlatformDevice(this, this);
-}
+PlatformDevice::PlatformDevice(SkDevice* device)
+    : device_(device) {
+} 
 
 bool PlatformDevice::IsNativeFontRenderingAllowed() {
     return true;