cc: Remove all impl-side caps from RendererCapabilitiesImpl.

cc/output/software_renderer.cc

Index: cc/output/software_renderer.cc
diff --git a/cc/output/software_renderer.cc b/cc/output/software_renderer.cc
index 73b63d3e8f3e8110c745836775a9143ca3a9374a..e14b8484a0112c3fc241d8e23c0b52ee7dc3b04d 100644
--- a/cc/output/software_renderer.cc
+++ b/cc/output/software_renderer.cc
@@ -63,13 +63,7 @@ SoftwareRenderer::SoftwareRenderer(const RendererSettings* settings,
     capabilities_.best_texture_format =
         resource_provider_->best_texture_format();
   }
-  // The updater can access bitmaps while the SoftwareRenderer is using them.
-  capabilities_.allow_partial_texture_updates = true;
-  capabilities_.using_partial_swap = true;
-
   capabilities_.using_shared_memory_resources = true;
-
-  capabilities_.allow_rasterize_on_demand = true;
 }
 
 SoftwareRenderer::~SoftwareRenderer() {}
@@ -78,6 +72,10 @@ const RendererCapabilitiesImpl& SoftwareRenderer::Capabilities() const {
   return capabilities_;
 }
 
+bool SoftwareRenderer::CanPartialSwap() {
+  return true;
+}
+
 void SoftwareRenderer::BeginDrawingFrame(DrawingFrame* frame) {
   TRACE_EVENT0("cc", "SoftwareRenderer::BeginDrawingFrame");
   root_canvas_ = output_device_->BeginPaint(frame->root_damage_rect);