Fix issue incremental upload can evict textures being drawn

cc/tiled_layer_unittest.cc

 // Copyright 2011 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 "config.h"
 
 #include "TiledLayerChromium.h"
 
 #include "BitmapCanvasLayerTextureUpdater.h"
 #include "CCAnimationTestCommon.h"
@@ skipping 78 matching lines @@
         {
             return m_layerImpl;
         }
     private:
         FakeCCTiledLayerImpl* m_layerImpl;
     };
     void textureManagerClearAllMemory(CCPrioritizedTextureManager* textureManager, CCResourceProvider* resourceProvider)
     {
         DebugScopedSetImplThreadAndMainThreadBlocked implThreadAndMainThreadBlocked;
         textureManager->clearAllMemory(resourceProvider);
+        textureManager->reduceMemory(resourceProvider);
     }
     void updateTextures()
     {
         DebugScopedSetImplThreadAndMainThreadBlocked implThreadAndMainThreadBlocked;
         ASSERT(m_queue);
         OwnPtr<CCTextureUpdateController> updateController =
             CCTextureUpdateController::create(
                 NULL,
                 CCProxy::implThread(),
                 m_queue.release(),
@@ skipping 1440 matching lines @@
     updateTextures();
 
     // Invalidate the entire layer in layer space. When painting, the rect given to webkit should match the layer's bounds.
     layer->setNeedsDisplayRect(layerRect);
     layer->update(*m_queue.get(), 0, m_stats);
 
     EXPECT_RECT_EQ(layerRect, layer->trackingLayerPainter()->paintedRect());
 }
 
 } // namespace