cc: Give ownership of render passes to the renderer when drawing a frame.

cc/layer_tree_host_impl_unittest.cc

Index: cc/layer_tree_host_impl_unittest.cc
diff --git a/cc/layer_tree_host_impl_unittest.cc b/cc/layer_tree_host_impl_unittest.cc
index 58e361ed2b31a7329f6e984d15184d1123061e68..b13b2a96decb2e438fe0debba3b37d5667bfe1e0 100644
--- a/cc/layer_tree_host_impl_unittest.cc
+++ b/cc/layer_tree_host_impl_unittest.cc
@@ -2413,16 +2413,15 @@ TEST_P(LayerTreeHostImplTest, contributingLayerEmptyScissorPartialSwap)
         LayerTreeHostImpl::FrameData frame;
         EXPECT_TRUE(myHostImpl->prepareToDraw(frame));
 
-        // Just for consistency, the most interesting stuff already happened
-        myHostImpl->drawLayers(frame);
-        myHostImpl->didDrawAllLayers(frame);
-
         // Verify all quads have been computed
         ASSERT_EQ(2U, frame.renderPasses.size());
         ASSERT_EQ(1U, frame.renderPasses[0]->quad_list.size());
         ASSERT_EQ(1U, frame.renderPasses[1]->quad_list.size());
         EXPECT_EQ(DrawQuad::SOLID_COLOR, frame.renderPasses[0]->quad_list[0]->material);
         EXPECT_EQ(DrawQuad::RENDER_PASS, frame.renderPasses[1]->quad_list[0]->material);
+
+        myHostImpl->drawLayers(frame);
+        myHostImpl->didDrawAllLayers(frame);
     }
 }
 
@@ -2434,16 +2433,15 @@ TEST_P(LayerTreeHostImplTest, contributingLayerEmptyScissorNoPartialSwap)
         LayerTreeHostImpl::FrameData frame;
         EXPECT_TRUE(myHostImpl->prepareToDraw(frame));
 
-        // Just for consistency, the most interesting stuff already happened
-        myHostImpl->drawLayers(frame);
-        myHostImpl->didDrawAllLayers(frame);
-
         // Verify all quads have been computed
         ASSERT_EQ(2U, frame.renderPasses.size());
         ASSERT_EQ(1U, frame.renderPasses[0]->quad_list.size());
         ASSERT_EQ(1U, frame.renderPasses[1]->quad_list.size());
         EXPECT_EQ(DrawQuad::SOLID_COLOR, frame.renderPasses[0]->quad_list[0]->material);
         EXPECT_EQ(DrawQuad::RENDER_PASS, frame.renderPasses[1]->quad_list[0]->material);
+
+        myHostImpl->drawLayers(frame);
+        myHostImpl->didDrawAllLayers(frame);
     }
 }