Switch to use SharedBitmapManager all the time in cc_unittests

cc/layers/layer_position_constraint_unittest.cc

Index: cc/layers/layer_position_constraint_unittest.cc
diff --git a/cc/layers/layer_position_constraint_unittest.cc b/cc/layers/layer_position_constraint_unittest.cc
index 84bf944601dd97233e9d1e4d8b5c6a43557882b5..cc112d1b157178ed79032e561ec8988ee8064e48 100644
--- a/cc/layers/layer_position_constraint_unittest.cc
+++ b/cc/layers/layer_position_constraint_unittest.cc
@@ -10,6 +10,7 @@
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
+#include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -64,8 +65,7 @@ void ExecuteCalculateDrawProperties(LayerImpl* root_layer) {
 
 class LayerPositionConstraintTest : public testing::Test {
  public:
-  LayerPositionConstraintTest()
-      : host_impl_(&proxy_) {
+  LayerPositionConstraintTest() : host_impl_(&proxy_, &shared_bitmap_manager_) {
     root_ = CreateTreeForTest();
     scroll_ = root_->children()[0];
     fixed_to_top_left_.set_is_fixed_position(true);
@@ -135,6 +135,7 @@ class LayerPositionConstraintTest : public testing::Test {
 
  protected:
   FakeImplProxy proxy_;
+  TestSharedBitmapManager shared_bitmap_manager_;
   FakeLayerTreeHostImpl host_impl_;
   scoped_ptr<LayerImpl> root_;
   LayerImpl* scroll_;