cc: Turn DrawQuad into a struct-like class with public data members.

cc/checkerboard_draw_quad.cc

Index: cc/checkerboard_draw_quad.cc
diff --git a/cc/checkerboard_draw_quad.cc b/cc/checkerboard_draw_quad.cc
index 709bade9aff004aaf2f1000d5e8d5405ecd6d342..892d2bd04d91231f66ae6d0bb95ae6beb111a6be 100644
--- a/cc/checkerboard_draw_quad.cc
+++ b/cc/checkerboard_draw_quad.cc
@@ -14,16 +14,17 @@ scoped_ptr<CheckerboardDrawQuad> CheckerboardDrawQuad::create(const SharedQuadSt
 }
 
 CheckerboardDrawQuad::CheckerboardDrawQuad(const SharedQuadState* sharedQuadState, const gfx::Rect& quadRect, SkColor color)
-    : DrawQuad(sharedQuadState, DrawQuad::CHECKERBOARD, quadRect, quadRect)
-    , m_color(color)
+    : m_color(color)
 {
-    if (SkColorGetA(m_color) < 255)
-        opaque_rect_ = gfx::Rect();
+    gfx::Rect opaqueRect = SkColorGetA(m_color) == 255 ? quadRect : gfx::Rect();
+    gfx::Rect visibleRect = quadRect;
+    bool needsBlending = false;
+    DrawQuad::SetAll(sharedQuadState, DrawQuad::CHECKERBOARD, quadRect, opaqueRect, visibleRect, needsBlending);
 }
 
 const CheckerboardDrawQuad* CheckerboardDrawQuad::materialCast(const DrawQuad* quad)
 {
-    DCHECK(quad->material() == DrawQuad::CHECKERBOARD);
+    DCHECK(quad->material == DrawQuad::CHECKERBOARD);
     return static_cast<const CheckerboardDrawQuad*>(quad);
 }