Add ColorCodecSrc for testing/comparison on color corrected decodes

dm/DM.cpp

Index: dm/DM.cpp
diff --git a/dm/DM.cpp b/dm/DM.cpp
index fe1432bf32f16332750f2d32c358f19d10ab740b..8de7a9f23c3371daadd415f74cb061ca5651eed0 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -762,6 +762,11 @@ static bool brd_supported(const char* ext) {
     return false;
 }
 
+static void push_color_codec_srcs(Path path) {
+    ColorCodecSrc* src = new ColorCodecSrc(path, ColorCodecSrc::kBaseline_Mode);

[scroggo, 2016/04/29 15:36:51]

Given that this is only two lines and only called in one place, I would
recommend inlining it.

[msarett, 2016/04/29 16:37:24]

Done.

+    push_src("image", "color_codec_baseline", src);
+}
+
 static bool gather_srcs() {
     for (const skiagm::GMRegistry* r = skiagm::GMRegistry::Head(); r; r = r->next()) {
         push_src("gm", "", new GMSrc(r->factory()));
@@ -779,7 +784,7 @@ static bool gather_srcs() {
     }
 
     SkTArray<SkString> images;
-    if (!CollectImages(&images)) {
+    if (!CollectImages(FLAGS_images, &images)) {
         return false;
     }
 
@@ -795,6 +800,15 @@ static bool gather_srcs() {
         }
     }
 
+    SkTArray<SkString> colorImages;
+    if (!CollectImages(FLAGS_colorImages, &colorImages)) {
+        return false;
+    }
+
+    for (auto colorImage : colorImages) {
+        push_color_codec_srcs(colorImage);
+    }
+
     return true;
 }