Revert 98230 - CL removing inheritance of SkDevice from PlatformDevice.

PlatformDevice is now a base interface, which is implemented by the various flavours of BitmapPlatformDevice, and VectorPlatformDevice.  The BitmapPlatformDevice and VectorPlatformDevice classes now inherit directly from SkDevice, or SkPDFDevice, as appropriate.

PlatformDevice helper functions access the PlatformDevice interface attached to a SkDevice via meta-data on the SkDevice.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/7633040

TBR=twiz@chromium.org,jbates@chromium.org, dpolukhin@chromium.org, sanjeevr@chromium.org
Review URL: http://codereview.chromium.org/7754001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98233 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 13 insertions, 2 deletions

diff --git a/skia/ext/platform_device_linux.cc b/skia/ext/platform_device_linux.cc
index f72e614..f633758 100644
--- a/skia/ext/platform_device_linux.cc
+++ b/skia/ext/platform_device_linux.cc
@@ -6,12 +6,23 @@
 
 namespace skia {
 
-PlatformSurface PlatformDevice::BeginPlatformPaint() {
-  return NULL;
+PlatformDevice::PlatformDevice(const SkBitmap& bitmap)
+    : SkDevice(bitmap) {
+  SetPlatformDevice(this, this);
+}
+
+bool PlatformDevice::IsNativeFontRenderingAllowed() {
+  return true;
 }
 
 void PlatformDevice::EndPlatformPaint() {
   // We don't need to do anything on Linux here.
 }
 
+void PlatformDevice::DrawToNativeContext(PlatformSurface surface, int x, int y,
+                                         const PlatformRect* src_rect) {
+  // Should never be called on Linux.
+  SkASSERT(false);
+}
+
 }  // namespace skia