Reland: cc: Fix size_t to int truncations in layers/ output/ playback/ quads/

cc/output/direct_renderer.cc

Index: cc/output/direct_renderer.cc
diff --git a/cc/output/direct_renderer.cc b/cc/output/direct_renderer.cc
index 10bba297434028d1dbfbfb194ed7611e83f1b8cb..c31ca931f22a2383d1fba78a0483f06bedaf990d 100644
--- a/cc/output/direct_renderer.cc
+++ b/cc/output/direct_renderer.cc
@@ -194,7 +194,7 @@ void DirectRenderer::DrawFrame(RenderPassList* render_passes_in_draw_order,
                                bool disable_picture_quad_image_filtering) {
   TRACE_EVENT0("cc", "DirectRenderer::DrawFrame");
   UMA_HISTOGRAM_COUNTS("Renderer4.renderPassCount",
-                       render_passes_in_draw_order->size());
+                       static_cast<int>(render_passes_in_draw_order->size()));
 
   const RenderPass* root_render_pass = render_passes_in_draw_order->back();
   DCHECK(root_render_pass);