Tile Compression

cc/resources/texture_uploader.cc

Index: cc/resources/texture_uploader.cc
diff --git a/cc/resources/texture_uploader.cc b/cc/resources/texture_uploader.cc
index 9526fcb9238bdf5f1d4591aab7184c544d0022f2..0e3394521d4bc86e0c6f7f7e1dc127ac8aafe89d 100644
--- a/cc/resources/texture_uploader.cc
+++ b/cc/resources/texture_uploader.cc
@@ -195,6 +195,7 @@ void TextureUploader::UploadWithTexSubImage(const uint8* image,
 
   const uint8* pixel_source;
   unsigned bytes_per_pixel = BitsPerPixel(format) / 8;
+  DCHECK(bytes_per_pixel);
   // Use 4-byte row alignment (OpenGL default) for upload performance.
   // Assuming that GL_UNPACK_ALIGNMENT has not changed from default.
   unsigned upload_image_stride =
@@ -250,6 +251,7 @@ void TextureUploader::UploadWithMapTexSubImage(const uint8* image,
   gfx::Vector2d offset(source_rect.origin() - image_rect.origin());
 
   unsigned bytes_per_pixel = BitsPerPixel(format) / 8;
+  DCHECK(bytes_per_pixel);
   // Use 4-byte row alignment (OpenGL default) for upload performance.
   // Assuming that GL_UNPACK_ALIGNMENT has not changed from default.
   unsigned upload_image_stride =