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

cc/quad_culler_unittest.cc

Index: cc/quad_culler_unittest.cc
diff --git a/cc/quad_culler_unittest.cc b/cc/quad_culler_unittest.cc
index 6bc2998cb7c45a4ff1ae559a1b307a053e5b554a..c94aadb9d4477d7d18ec51fc0a1716c3d4ac4e71 100644
--- a/cc/quad_culler_unittest.cc
+++ b/cc/quad_culler_unittest.cc
@@ -178,18 +178,18 @@ TEST(QuadCullerTest, verifyCullCenterTileOnly)
     appendQuads(quadList, sharedStateList, rootLayer.get(), it, occlusionTracker);
     ASSERT_EQ(quadList.size(), 12u);
 
-    gfx::Rect quadVisibleRect1 = quadList[5]->visible_rect();
+    gfx::Rect quadVisibleRect1 = quadList[5]->visible_rect;
     EXPECT_EQ(quadVisibleRect1.height(), 50);
 
-    gfx::Rect quadVisibleRect3 = quadList[7]->visible_rect();
+    gfx::Rect quadVisibleRect3 = quadList[7]->visible_rect;
     EXPECT_EQ(quadVisibleRect3.width(), 50);
 
     // Next index is 8, not 9, since centre quad culled.
-    gfx::Rect quadVisibleRect4 = quadList[8]->visible_rect();
+    gfx::Rect quadVisibleRect4 = quadList[8]->visible_rect;
     EXPECT_EQ(quadVisibleRect4.width(), 50);
     EXPECT_EQ(quadVisibleRect4.x(), 250);
 
-    gfx::Rect quadVisibleRect6 = quadList[10]->visible_rect();
+    gfx::Rect quadVisibleRect6 = quadList[10]->visible_rect;
     EXPECT_EQ(quadVisibleRect6.height(), 50);
     EXPECT_EQ(quadVisibleRect6.y(), 250);