Make DrawQuad constructors public, rm DQ::Create() function

mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc

Index: mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc
diff --git a/mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc b/mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc
index e61ad94df9dedd42df4f7143cffc9f6652505bbb..16527f65f75843b902c4d092a862909a06cbd1a1 100644
--- a/mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc
+++ b/mojo/services/public/cpp/surfaces/lib/surfaces_type_converters.cc
@@ -113,8 +113,7 @@ scoped_ptr<cc::DrawQuad> ConvertTo(const surfaces::QuadPtr& input,
                                    cc::SharedQuadState* sqs) {
   switch (input->material) {
     case surfaces::SOLID_COLOR: {
-      scoped_ptr<cc::SolidColorDrawQuad> color_quad =
-          cc::SolidColorDrawQuad::Create();
+      scoped_ptr<cc::SolidColorDrawQuad> color_quad(new cc::SolidColorDrawQuad);
       color_quad->SetAll(
           sqs,
           input->rect.To<gfx::Rect>(),
@@ -126,8 +125,7 @@ scoped_ptr<cc::DrawQuad> ConvertTo(const surfaces::QuadPtr& input,
       return color_quad.PassAs<cc::DrawQuad>();
     }
     case surfaces::SURFACE_CONTENT: {
-      scoped_ptr<cc::SurfaceDrawQuad> surface_quad =
-          cc::SurfaceDrawQuad::Create();
+      scoped_ptr<cc::SurfaceDrawQuad> surface_quad(new cc::SurfaceDrawQuad);
       surface_quad->SetAll(
           sqs,
           input->rect.To<gfx::Rect>(),
@@ -138,8 +136,7 @@ scoped_ptr<cc::DrawQuad> ConvertTo(const surfaces::QuadPtr& input,
       return surface_quad.PassAs<cc::DrawQuad>();
     }
     case surfaces::TEXTURE_CONTENT: {
-      scoped_ptr<cc::TextureDrawQuad> texture_quad =
-          cc::TextureDrawQuad::Create();
+      scoped_ptr<cc::TextureDrawQuad> texture_quad(new cc::TextureDrawQuad);
       surfaces::TextureQuadStatePtr& texture_quad_state =
           input->texture_quad_state;
       texture_quad->SetAll(