Remove few more errors in mac scons build.

BUG=5525
Review URL: http://codereview.chromium.org/14113

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@6981 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 6 insertions, 6 deletions

diff --git a/webkit/port/platform/image-decoders/gif/GIFImageReader.h b/webkit/port/platform/image-decoders/gif/GIFImageReader.h
index faa08d2..c05c80b 100644
--- a/webkit/port/platform/image-decoders/gif/GIFImageReader.h
+++ b/webkit/port/platform/image-decoders/gif/GIFImageReader.h
@@ -165,11 +165,11 @@ struct GIFImageReader {
     int version;                /* Either 89 for GIF89 or 87 for GIF87 */
     unsigned screen_width;       /* Logical screen width & height */
     unsigned screen_height;
-    int global_colormap_size;   /* Size of global colormap array. */
-    int images_decoded;         /* Counts completed frames for animated GIFs */
-    int images_count;           /* Counted all frames seen so far (including incomplete frames) */
-    int loop_count;             /* Netscape specific extension block to control
-                                   the number of animation loops a GIF renders. */
+    int global_colormap_size;    /* Size of global colormap array. */
+    unsigned int images_decoded; /* Counts completed frames for animated GIFs */
+    int images_count;            /* Counted all frames seen so far (including incomplete frames) */
+    int loop_count;              /* Netscape specific extension block to control
+                                    the number of animation loops a GIF renders. */
     
     // Not really global, but convenient to locate here.
     int count;                  /* Remaining # bytes in sub-block */
diff --git a/webkit/port/platform/image-decoders/png/PNGImageDecoder.cpp b/webkit/port/platform/image-decoders/png/PNGImageDecoder.cpp
index 7f62f63..dbfbac6 100644
--- a/webkit/port/platform/image-decoders/png/PNGImageDecoder.cpp
+++ b/webkit/port/platform/image-decoders/png/PNGImageDecoder.cpp
@@ -48,7 +48,7 @@ const double cDefaultGamma = 2.2;
 const double cInverseGamma = 0.45455;
 
 // Protect against large PNGs. See Mozilla's bug #251381 for more info.
-const long cMaxPNGSize = 1000000L;
+const unsigned long cMaxPNGSize = 1000000UL;
 
 // Called if the decoding of the image fails.
 static void PNGAPI decodingFailed(png_structp png_ptr, png_const_charp error_msg);