Change clear() to respect the clip

include/core/SkDevice.h

Index: include/core/SkDevice.h
diff --git a/include/core/SkDevice.h b/include/core/SkDevice.h
index 3c26baca5b012da04a84b38b470f926e6bb279dc..f20ebf719ab7283014f17488b376fb554208b9fb 100644
--- a/include/core/SkDevice.h
+++ b/include/core/SkDevice.h
@@ -163,8 +163,9 @@ protected:
 
     /** Clears the entire device to the specified color (including alpha).
      *  Ignores the clip.
+     *  DEPRECATED : will go away when chrome subclasses have been updated
      */
-    virtual void clear(SkColor color) = 0;
+    virtual void clear(SkColor color);
 
     SK_ATTR_DEPRECATED("use clear() instead")
     void eraseColor(SkColor eraseColor) { this->clear(eraseColor); }