[sksg] Simplify TrimEffect

Move the Lottie-specific bits to Skottie and keep TrimEffect as a thin
SkTrimPathEffect wrapper.

TBR=

Change-Id: Iecc6624d01ba61eb96a2056ef8e9e24e731f8979
Reviewed-on: https://skia-review.googlesource.com/115923
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/experimental/skottie/Skottie.cpp b/experimental/skottie/Skottie.cpp
index a7b6b23..5a04e5a 100644
--- a/experimental/skottie/Skottie.cpp
+++ b/experimental/skottie/Skottie.cpp
@@ -427,19 +427,21 @@
     std::vector<sk_sp<sksg::GeometryNode>> trimmed;
     trimmed.reserve(inputs.size());
     for (const auto& i : inputs) {
-        const auto trim = sksg::TrimEffect::Make(i);
-        trimmed.push_back(trim);
+        const auto trimEffect = sksg::TrimEffect::Make(i);
+        trimmed.push_back(trimEffect);
+
+        const auto trimComposite = sk_make_sp<CompositeTrimEffect>(std::move(trimEffect));
         BindProperty<ScalarValue>(jtrim["s"], &ctx->fAnimators,
-            [trim](const ScalarValue& s) {
-                trim->setStart(s * 0.01f);
+            [trimComposite](const ScalarValue& s) {
+                trimComposite->setStart(s);
             });
         BindProperty<ScalarValue>(jtrim["e"], &ctx->fAnimators,
-            [trim](const ScalarValue& e) {
-                trim->setEnd(e * 0.01f);
+            [trimComposite](const ScalarValue& e) {
+                trimComposite->setEnd(e);
             });
         BindProperty<ScalarValue>(jtrim["o"], &ctx->fAnimators,
-            [trim](const ScalarValue& o) {
-                trim->setOffset(o / 360);
+            [trimComposite](const ScalarValue& o) {
+                trimComposite->setOffset(o);
             });
     }