WIP: Added support for giflib, updated jpeg and png

gyp/giflib.gyp

Index: gyp/giflib.gyp
diff --git a/gyp/giflib.gyp b/gyp/giflib.gyp
index 3a2c2153bf0ed6b52e5dc54c59e53ab15799babc..fd6ba2d4e383c3366c996d27c53a10f8718d0341 100644
--- a/gyp/giflib.gyp
+++ b/gyp/giflib.gyp
@@ -11,7 +11,7 @@
     {
       'target_name': 'giflib',
       'conditions': [
-        [ 'skia_giflib_static',

[msarett, 2015/03/26 18:22:46]

As far as I can tell, this is always 0.  So past code always used -lgif.

[scroggo, 2015/03/26 18:29:34]

Dead code. We should probably remove skia_giflib_static.

[msarett, 2015/03/26 21:06:23]

Done.

+        [ 'skia_os != "android"',
           {
             'type': 'static_library',
             'defines': [
@@ -35,15 +35,11 @@
               '../third_party/externals/giflib/gifalloc.c',
               '../third_party/externals/giflib/gif_err.c',
             ],
-          }, {  # not skia_giflib_static
-            'type': 'none',
-            'direct_dependent_settings': {
-              'link_settings': {
-                'libraries': [
-                  '-lgif',
-                ],
-              },
-            },
+          }, {  # skia_os == "android"

[djsollen, 2015/03/26 19:51:05]

let's not make the distinction between android and other platforms for libgif as
they all build using the same sources.

[scroggo, 2015/03/26 20:10:11]

We *do* need to make a distinction for skia_android_framework though. I think
android_deps takes care of that for you, so you'll need to move that code here.

[msarett, 2015/03/26 21:06:23]

Gotcha.

+            'type': 'static_library',
+            'dependencies': [
+              'android_deps.gyp:gif',

[msarett, 2015/03/26 18:22:46]

For android, do what images.gyp does and use android's library.

+            ],
           }
         ],
       ]