cc: Set the mapped memory reclaim limit for the renderer compositor on Android

cc/layers/scrollbar_layer_unittest.cc

Index: cc/layers/scrollbar_layer_unittest.cc
diff --git a/cc/layers/scrollbar_layer_unittest.cc b/cc/layers/scrollbar_layer_unittest.cc
index 50d666ad03b81fbd392c37abca69ab8a627489e2..ce014e4ef488dbfbaeec9f541507fed9fbc828b4 100644
--- a/cc/layers/scrollbar_layer_unittest.cc
+++ b/cc/layers/scrollbar_layer_unittest.cc
@@ -469,6 +469,10 @@ class ScrollbarLayerTestMaxTextureSize : public LayerTreeTest {
 
   virtual void AfterTest() OVERRIDE {}
 
+  virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
+    settings->max_bytes_pending_upload = 16 * 1024 * 1024;
+  }
+
  private:
   scoped_refptr<ScrollbarLayer> scrollbar_layer_;
   scoped_refptr<Layer> scroll_layer_;