blimp: Change auto to not deduce raw pointers.

blimp/engine/renderer/engine_image_serialization_processor.cc

Index: blimp/engine/renderer/engine_image_serialization_processor.cc
diff --git a/blimp/engine/renderer/engine_image_serialization_processor.cc b/blimp/engine/renderer/engine_image_serialization_processor.cc
index c79f2af049b768d9127de841c392ee0ba847b873..8c5aed6a026632540d9d87c311f54174ba654e2c 100644
--- a/blimp/engine/renderer/engine_image_serialization_processor.cc
+++ b/blimp/engine/renderer/engine_image_serialization_processor.cc
@@ -165,7 +165,7 @@ scoped_refptr<BlobData> EngineImageSerializationProcessor::EncodeImageAsBlob(
   picture.height = pixmap.height();
 
   // Import picture from raw pixels.
-  auto pixel_chars = static_cast<const unsigned char*>(pixmap.addr());
+  auto* pixel_chars = static_cast<const unsigned char*>(pixmap.addr());
   CHECK(PlatformPictureImport(pixel_chars, &picture, pixmap.alphaType()));
 
   // Set up the writer parameters.