cc: Set tile manager memory policy in initializeRenderer.

cc/test/layer_tree_test.cc

Index: cc/test/layer_tree_test.cc
diff --git a/cc/test/layer_tree_test.cc b/cc/test/layer_tree_test.cc
index e880510bacead566473b02475296be94b3f9f9a0..be145d7d2c2cd1618b89765400f9624b51856bd4 100644
--- a/cc/test/layer_tree_test.cc
+++ b/cc/test/layer_tree_test.cc
@@ -133,6 +133,10 @@ class LayerTreeHostImplForTesting : public LayerTreeHostImpl {
 
   virtual bool InitializeRenderer(scoped_ptr<OutputSurface> output_surface)
       OVERRIDE {
+    // By default, suppress tile management scheduling unless we're explicitly
+    // testing that.
+    LayerTreeHostImpl::SetManagedMemoryPolicy(ManagedMemoryPolicy(0));
+
     bool success = LayerTreeHostImpl::InitializeRenderer(output_surface.Pass());
     test_hooks_->InitializedRendererOnThread(this, success);
     return success;