Observe surface LCD settings in SkBaseDevice::drawTextBlob()

include/core/SkDevice.h

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDevice_DEFINED
 #define SkDevice_DEFINED
 
@@ skipping 99 matching lines @@
      * possibly from SkCanvas' dtor.
      */
     virtual void onDetachFromCanvas() {
         SkASSERT(fAttachedToCanvas);
         this->unlockPixels();
 #ifdef SK_DEBUG
         fAttachedToCanvas = false;
 #endif
     };
 
-    bool shouldDisableLCD(const SkPaint&) const;
-
 protected:
     enum Usage {
        kGeneral_Usage,
        kSaveLayer_Usage,  // <! internal use only
        kImageFilter_Usage // <! internal use only
     };
 
     struct TextFlags {
         uint32_t    fFlags;     // SkPaint::getFlags()
     };
 
+    /**
+     * Returns the text-related flags, possibly modified based on the state of the
+     * device (e.g. support for LCD).
+     */
+    uint32_t filterTextFlags(const SkPaint&) const;
+
     virtual bool onShouldDisableLCD(const SkPaint&) const { return false; }
 
     /**
      *
      *  DEPRECATED: This will be removed in a future change. Device subclasses
      *  should use the matrix and clip from the SkDraw passed to draw functions.
      *
      *  Called with the correct matrix and clip before this device is drawn
      *  to using those settings. If your subclass overrides this, be sure to
      *  call through to the base class as well.
@@ skipping 244 matching lines @@
     SkDeviceProperties* fLeakyProperties;   // will always exist.
 
 #ifdef SK_DEBUG
     bool        fAttachedToCanvas;
 #endif
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif