Make GrCacheable implement its own ref counting.

tests/ClipCacheTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 // This is a GR test
 #if SK_SUPPORT_GPU
@@ skipping 39 matching lines @@
     desc.fFlags     = kRenderTarget_GrTextureFlagBit;
     desc.fConfig    = kAlpha_8_GrPixelConfig;
     desc.fWidth     = kXSize;
     desc.fHeight    = kYSize;
 
     GrTexture* texture = context->createUncachedTexture(desc, NULL, 0);
     if (!texture) {
         return;
     }
 
-    SkAutoUnref au(texture);
+    SkAutoTUnref<GrTexture> au(texture);
 
     SkIRect intScreen = SkIRect::MakeWH(kXSize, kYSize);
     SkRect screen;
 
     screen = SkRect::MakeWH(SkIntToScalar(kXSize),
                             SkIntToScalar(kYSize));
 
     SkRect clipRect(screen);
     clipRect.outset(10, 10);
 
@@ skipping 86 matching lines @@
     cache.acquireMask(clip1.getTopmostGenID(), desc, bound1);
 
     GrTexture* texture1 = cache.getLastMask();
     REPORTER_ASSERT(reporter, texture1);
     if (NULL == texture1) {
         return;
     }
 
     // check that the set took
     check_state(reporter, cache, clip1, texture1, bound1);
-    REPORTER_ASSERT(reporter, texture1->getRefCnt());
 
     // push the state
     cache.push();
 
     // verify that the pushed state is initially empty
     check_empty_state(reporter, cache);
-    REPORTER_ASSERT(reporter, texture1->getRefCnt());
 
     // modify the new state
     SkIRect bound2;
     bound2.set(-10, -10, 10, 10);
 
     SkClipStack clip2(bound2);
 
     cache.acquireMask(clip2.getTopmostGenID(), desc, bound2);
 
     GrTexture* texture2 = cache.getLastMask();
     REPORTER_ASSERT(reporter, texture2);
     if (NULL == texture2) {
         return;
     }
 
     // check that the changes took
     check_state(reporter, cache, clip2, texture2, bound2);
-    REPORTER_ASSERT(reporter, texture1->getRefCnt());
-    REPORTER_ASSERT(reporter, texture2->getRefCnt());
 
     // check to make sure canReuse works
     REPORTER_ASSERT(reporter, cache.canReuse(clip2.getTopmostGenID(), bound2));
     REPORTER_ASSERT(reporter, !cache.canReuse(clip1.getTopmostGenID(), bound1));
 
     // pop the state
     cache.pop();
 
     // verify that the old state is restored
     check_state(reporter, cache, clip1, texture1, bound1);
-    REPORTER_ASSERT(reporter, texture1->getRefCnt());
 
     // manually clear the state
     cache.reset();
 
     // verify it is now empty
     check_empty_state(reporter, cache);
 
     // pop again - so there is no state
     cache.pop();
 
@@ skipping 14 matching lines @@
         if (NULL == context) {
             continue;
         }
 
         test_cache(reporter, context);
         test_clip_bounds(reporter, context);
     }
 }
 
 #endif