Make RendererD3D a bit smaller.

Move some D3D11-specific stuff into Renderer11, and remove a few
virtual methods that weren't needed to be virtual.

BUG=angleproject:1369

Change-Id: Id37e7271ffc28b089dbea123dca70f38c1a06ffb
Reviewed-on: https://chromium-review.googlesource.com/345913
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/src/common/utilities.cpp b/src/common/utilities.cpp
index 9686c74..d9e8b66 100644
--- a/src/common/utilities.cpp
+++ b/src/common/utilities.cpp
@@ -715,7 +715,7 @@
 {
     return target == EGL_GL_RENDERBUFFER_KHR;
 }
-}
+}  // namespace egl
 
 namespace egl_gl
 {
@@ -753,7 +753,7 @@
 {
     return static_cast<GLuint>(reinterpret_cast<uintptr_t>(buffer));
 }
-}
+}  // namespace egl_gl
 
 #if !defined(ANGLE_ENABLE_WINDOWS_STORE)
 std::string getTempPath()