cc: Delete all the RendererCapabilities.

cc/output/gl_renderer.h

Index: cc/output/gl_renderer.h
diff --git a/cc/output/gl_renderer.h b/cc/output/gl_renderer.h
index b26f868459537bd8596cbbd27b37ee3350c86e36..094338b47ae8f3000e53d472258ef7ffec594aaa 100644
--- a/cc/output/gl_renderer.h
+++ b/cc/output/gl_renderer.h
@@ -15,7 +15,6 @@
 #include "cc/output/direct_renderer.h"
 #include "cc/output/gl_renderer_draw_cache.h"
 #include "cc/output/program_binding.h"
-#include "cc/output/renderer_capabilities_impl.h"
 #include "cc/quads/debug_border_draw_quad.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
@@ -58,8 +57,6 @@ class CC_EXPORT GLRenderer : public DirectRenderer {
              int highp_threshold_min);
   ~GLRenderer() override;
 
-  const RendererCapabilitiesImpl& Capabilities() const override;
-
   void SwapBuffers(CompositorFrameMetadata metadata) override;
   void SwapBuffersComplete() override;
 
@@ -283,8 +280,6 @@ class CC_EXPORT GLRenderer : public DirectRenderer {
   // texture id of the resource.
   std::map<unsigned, OverlayResourceLock> swapped_and_acked_overlay_resources_;
 
-  RendererCapabilitiesImpl capabilities_;
-
   unsigned offscreen_framebuffer_id_;
 
   std::unique_ptr<StaticGeometryBinding> shared_geometry_;