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, 8 insertions, 1 deletions

diff --git a/skia/ext/platform_device_linux.cc b/skia/ext/platform_device_linux.cc
index b943120..675d19f 100644
--- a/skia/ext/platform_device_linux.cc
+++ b/skia/ext/platform_device_linux.cc
@@ -2,12 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "skia/ext/platform_device_linux.h"
+#include "skia/ext/platform_device.h"
 
 namespace skia {
 
 PlatformDevice::PlatformDevice(const SkBitmap& bitmap)
     : SkDevice(NULL, bitmap, /*isForLayer=*/false) {
+  SetPlatformDevice(this, this);
 }
 
 bool PlatformDevice::IsNativeFontRenderingAllowed() {
@@ -18,4 +19,10 @@ 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