Move webp_transcode to ios/chrome/browser

ios/chrome/browser/BUILD.gn

Index: ios/chrome/browser/BUILD.gn
diff --git a/ios/chrome/browser/BUILD.gn b/ios/chrome/browser/BUILD.gn
index 1d2fc97de48599e312436acbc5ace9a5e6bb9f23..f3fdb0df504a61af18aceb72a853ff2d0812a82c 100644
--- a/ios/chrome/browser/BUILD.gn
+++ b/ios/chrome/browser/BUILD.gn
@@ -574,6 +574,8 @@ source_set("browser") {
     "web_data_service_factory.h",
     "web_resource/web_resource_util.cc",
     "web_resource/web_resource_util.h",
+    "webp_transcode/webp_decoder.h",
+    "webp_transcode/webp_decoder.mm",
     "xcallback_parameters.h",
     "xcallback_parameters.mm",
   ]
@@ -667,7 +669,6 @@ source_set("browser") {
     "//components/version_ui",
     "//components/web_resource",
     "//components/webdata_services",
-    "//components/webp_transcode",
     "//google_apis",
     "//ios/chrome/browser/variations:ios_chrome_ui_string_overrider_factory",
     "//ios/chrome/common",
@@ -685,6 +686,7 @@ source_set("browser") {
     "//sync",
     "//third_party/brotli",
     "//third_party/google_toolbox_for_mac",
+    "//third_party/libwebp:libwebp_dec",
     "//ui/base",
     "//ui/gfx",
     "//ui/resources",