Revert of Move DstCoordTexture to GrXP, rename and remove the word "copy" from dstcopytexture names.

include/gpu/GrTexture.h

Index: include/gpu/GrTexture.h
diff --git a/include/gpu/GrTexture.h b/include/gpu/GrTexture.h
index ddba94065be2600847422bc887b89db46f62f9a0..d565f2f9a7353faf9ec2839fc2e43c0f754ad964 100644
--- a/include/gpu/GrTexture.h
+++ b/include/gpu/GrTexture.h
@@ -70,4 +70,43 @@
     typedef GrSurface INHERITED;
 };
 
+/**
+ * Represents a texture that is intended to be accessed in device coords with an offset.
+ */
+class GrDeviceCoordTexture {
+public:
+    GrDeviceCoordTexture() { fOffset.set(0, 0); }
+
+    GrDeviceCoordTexture(const GrDeviceCoordTexture& other) {
+        *this = other;
+    }
+
+    GrDeviceCoordTexture(GrTexture* texture, const SkIPoint& offset)
+        : fTexture(SkSafeRef(texture))
+        , fOffset(offset) {
+    }
+
+    GrDeviceCoordTexture& operator=(const GrDeviceCoordTexture& other) {
+        fTexture.reset(SkSafeRef(other.fTexture.get()));
+        fOffset = other.fOffset;
+        return *this;
+    }
+
+    const SkIPoint& offset() const { return fOffset; }
+
+    void setOffset(const SkIPoint& offset) { fOffset = offset; }
+    void setOffset(int ox, int oy) { fOffset.set(ox, oy); }
+
+    GrTexture* texture() const { return fTexture.get(); }
+
+    GrTexture* setTexture(GrTexture* texture) {
+        fTexture.reset(SkSafeRef(texture));
+        return texture;
+    }
+
+private:
+    SkAutoTUnref<GrTexture> fTexture;
+    SkIPoint                fOffset;
+};
+
 #endif