cc: Switch to Chromium DCHECKs and LOGs

cc/CCLayerTilingData.cpp

Index: cc/CCLayerTilingData.cpp
diff --git a/cc/CCLayerTilingData.cpp b/cc/CCLayerTilingData.cpp
index 12c7aefc9bc5f88ef71f7139dfed076752977d0e..a5c6426becffb28599c61bab5ba7012793e66096 100644
--- a/cc/CCLayerTilingData.cpp
+++ b/cc/CCLayerTilingData.cpp
@@ -9,6 +9,8 @@
 
 #include "CCLayerTilingData.h"
 
+#include "base/logging.h"
+
 using namespace std;
 
 namespace cc {
@@ -62,7 +64,7 @@ const CCLayerTilingData& CCLayerTilingData::operator=(const CCLayerTilingData& t
 
 void CCLayerTilingData::addTile(PassOwnPtr<Tile> tile, int i, int j)
 {
-    ASSERT(!tileAt(i, j));
+    DCHECK(!tileAt(i, j));
     tile->moveTo(i, j);
     m_tiles.add(make_pair(i, j), tile);
 }
@@ -87,7 +89,7 @@ void CCLayerTilingData::contentRectToTileIndices(const IntRect& contentRect, int
     // An empty rect doesn't result in an empty set of tiles, so don't pass an empty rect.
     // FIXME: Possibly we should fill a vector of tiles instead,
     //        since the normal use of this function is to enumerate some tiles.
-    ASSERT(!contentRect.isEmpty());
+    DCHECK(!contentRect.isEmpty());
 
     left = m_tilingData.tileXIndexFromSrcCoord(contentRect.x());
     top = m_tilingData.tileYIndexFromSrcCoord(contentRect.y());