Revert of cc: Delete all the RendererCapabilities.

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index af574844fac381ab879e00bf98dbadf62aca8679..f8d70c4ddb85012371f11a05db47a70bd3375a6f 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -397,6 +397,9 @@
       output_surface_->context_provider()->ContextCapabilities();
   DCHECK(!context_caps.iosurface || context_caps.texture_rectangle);
 
+  capabilities_.max_texture_size = resource_provider_->max_texture_size();
+  capabilities_.best_texture_format = resource_provider_->best_texture_format();
+
   use_discard_framebuffer_ = context_caps.discard_framebuffer;
   use_sync_query_ = context_caps.sync_query;
   use_blend_equation_advanced_ = context_caps.blend_equation_advanced;
@@ -415,6 +418,10 @@
   }
 
   CleanupSharedObjects();
+}
+
+const RendererCapabilitiesImpl& GLRenderer::Capabilities() const {
+  return capabilities_;
 }
 
 bool GLRenderer::CanPartialSwap() {