Make SkAndroidCodec support ico

dm/DM.cpp

Index: dm/DM.cpp
diff --git a/dm/DM.cpp b/dm/DM.cpp
index 7497161369b42788dac022dc8f9eedb534801135..fac1376bcb01870a902451d49f8b6674bf05c1de 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -345,35 +345,17 @@ static void push_codec_srcs(Path path) {
     bool subset = false;
     // The following image types are supported by BitmapRegionDecoder,
     // so we will test full image decodes and subset decodes.
-    static const char* const subsetExts[] = {
+    static const char* const exts[] = {
         "jpg", "jpeg", "png", "webp",
         "JPG", "JPEG", "PNG", "WEBP",
     };
-    for (const char* ext : subsetExts) {
+    for (const char* ext : exts) {
         if (path.endsWith(ext)) {
             subset = true;
             break;
         }
     }
 
-    bool full = false;
-    // The following image types are only supported by BitmapFactory,
-    // so we only need to test full image decodes.
-    static const char* fullExts[] = {
-        "wbmp", "bmp", "gif",
-        "WBMP", "BMP", "GIF",
-    };
-    for (const char* ext : fullExts) {
-        if (path.endsWith(ext)) {
-            full = true;
-            break;
-        }
-    }
-
-    if (!full && !subset) {
-        return;
-    }
-
     const int sampleSizes[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
 
     for (int sampleSize : sampleSizes) {