Split SkDevice into SkBaseDevice and SkBitmapDevice

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
===================================================================
--- src/gpu/SkGpuDevice.cpp	(revision 10711)
+++ src/gpu/SkGpuDevice.cpp	(working copy)
@@ -161,12 +161,12 @@
 }
 
 SkGpuDevice::SkGpuDevice(GrContext* context, GrTexture* texture)
-: SkDevice(make_bitmap(context, texture->asRenderTarget())) {
+: SkRasterDevice(make_bitmap(context, texture->asRenderTarget())) {
     this->initFromRenderTarget(context, texture->asRenderTarget(), false);
 }
 
 SkGpuDevice::SkGpuDevice(GrContext* context, GrRenderTarget* renderTarget)
-: SkDevice(make_bitmap(context, renderTarget)) {
+: SkRasterDevice(make_bitmap(context, renderTarget)) {
     this->initFromRenderTarget(context, renderTarget, false);
 }
 
@@ -203,7 +203,7 @@
                          int width,
                          int height,
                          int sampleCount)
-    : SkDevice(config, width, height, false /*isOpaque*/) {
+    : SkRasterDevice(config, width, height, false /*isOpaque*/) {
 
     fDrawProcs = NULL;
 
@@ -1787,7 +1787,7 @@
 SkGpuDevice::SkGpuDevice(GrContext* context,
                          GrTexture* texture,
                          bool needClear)
-    : SkDevice(make_bitmap(context, texture->asRenderTarget())) {
+    : SkRasterDevice(make_bitmap(context, texture->asRenderTarget())) {
 
     GrAssert(texture && texture->asRenderTarget());
     // This constructor is called from onCreateCompatibleDevice. It has locked the RT in the texture