cc: Switch to Chromium DCHECKs and LOGs

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 f1b34a3de842359f624309a5b6aa7f67024fc49a..5beabff572a43375fc4f2c0aef6ff364c087ca04 100644
--- a/cc/checkerboard_draw_quad.cc
+++ b/cc/checkerboard_draw_quad.cc
@@ -6,6 +6,8 @@
 
 #include "CCCheckerboardDrawQuad.h"
 
+#include "cc/dcheck.h"
+
 namespace cc {
 
 scoped_ptr<CCCheckerboardDrawQuad> CCCheckerboardDrawQuad::create(const CCSharedQuadState* sharedQuadState, const IntRect& quadRect, SkColor color)
@@ -21,7 +23,7 @@ CCCheckerboardDrawQuad::CCCheckerboardDrawQuad(const CCSharedQuadState* sharedQu
 
 const CCCheckerboardDrawQuad* CCCheckerboardDrawQuad::materialCast(const CCDrawQuad* quad)
 {
-    ASSERT(quad->material() == CCDrawQuad::Checkerboard);
+    CC_DCHECK(quad->material() == CCDrawQuad::Checkerboard);
     return static_cast<const CCCheckerboardDrawQuad*>(quad);
 }