Roll Skia to r624.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/4842001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66494 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -5,7 +5,7 @@ vars = {
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "72187",
-  "skia_revision": "621",
+  "skia_revision": "624",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "40423",
   "nacl_revision": "3664",

skia/skia.gyp

@@ -270,6 +270,7 @@
         '../third_party/skia/src/core/SkRegion.cpp',
         '../third_party/skia/src/core/SkRegionPriv.h',
         '../third_party/skia/src/core/SkRegion_path.cpp',
+        '../third_party/skia/src/core/SkScalar.cpp',
         '../third_party/skia/src/core/SkScalerContext.cpp',
         '../third_party/skia/src/core/SkScan.cpp',
         '../third_party/skia/src/core/SkScanPriv.h',
@@ -385,6 +386,7 @@
         '../third_party/skia/src/ports/sk_predefined_gamma.h',
 
         '../third_party/skia/src/include/utils/mac/SkCGUtils.h',
+        '../third_party/skia/src/include/utils/SkTextFormatParams.h',
         '../third_party/skia/src/utils/mac/SkCreateCGImageRef.cpp',
 
         '../third_party/skia/include/core/Sk64.h',