Handle NinePatchLayer Resource Rebuilding.

cc/nine_patch_layer_unittest.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/nine_patch_layer.h"
 
 #include "cc/layer_tree_host.h"
 #include "cc/occlusion_tracker.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/rendering_stats.h"
@@ skipping 113 matching lines @@
         DebugScopedSetImplThread implThread(proxy());
         DebugScopedSetMainThreadBlocked mainThreadBlocked(proxy());
         m_layerTreeHost->contentsTextureManager()->clearAllMemory(resourceProvider.get());
     }
 
     // Reupload after eviction
     testLayer->setTexturePriorities(calculator);
     testLayer->update(queue, &occlusionTracker, stats);
     EXPECT_EQ(queue.fullUploadSize(), 1);
     EXPECT_EQ(queue.partialUploadSize(), 0);
+
+    // PrioritizedResourceManager clearing
+    m_layerTreeHost->contentsTextureManager()->unregisterTexture(params.texture);
+    EXPECT_EQ(NULL, params.texture->resourceManager());
+    testLayer->setTexturePriorities(calculator);
+    ResourceUpdateQueue queue2;
+    testLayer->update(queue2, &occlusionTracker, stats);
+    EXPECT_EQ(queue2.fullUploadSize(), 1);
+    EXPECT_EQ(queue2.partialUploadSize(), 0);
+    params = queue2.takeFirstFullUpload();
+    EXPECT_TRUE(params.texture != NULL);
+    EXPECT_EQ(params.texture->resourceManager(), m_layerTreeHost->contentsTextureManager());
 }
 
 }  // namespace
 }  // namespace cc