cc: Remove all impl-side caps from RendererCapabilitiesImpl.

cc/output/renderer_capabilities.cc

Index: cc/output/renderer_capabilities.cc
diff --git a/cc/output/renderer_capabilities.cc b/cc/output/renderer_capabilities.cc
index 36e012bf672bf57acea6853720d8a3a672c517a5..1ad2424a5376c3d0d445b142fa8209ad887666c4 100644
--- a/cc/output/renderer_capabilities.cc
+++ b/cc/output/renderer_capabilities.cc
@@ -7,23 +7,14 @@
 namespace cc {
 
 RendererCapabilities::RendererCapabilities(ResourceFormat best_texture_format,
-                                           bool allow_partial_texture_updates,
                                            int max_texture_size,
                                            bool using_shared_memory_resources)
     : best_texture_format(best_texture_format),
-      allow_partial_texture_updates(allow_partial_texture_updates),
       max_texture_size(max_texture_size),
       using_shared_memory_resources(using_shared_memory_resources) {
 }
 
-RendererCapabilities::RendererCapabilities()
-    : best_texture_format(RGBA_8888),
-      allow_partial_texture_updates(false),
-      max_texture_size(0),
-      using_shared_memory_resources(false) {
-}
-
-RendererCapabilities::~RendererCapabilities() {
-}
+RendererCapabilities::RendererCapabilities() = default;
+RendererCapabilities::~RendererCapabilities() = default;
 
 }  // namespace cc