[Chromecast] split out resource_delegate target.

This is the only target needed by l10n/

Bug: internal b/146428609
Test: on device
Change-Id: I6b70f08fc30ecce71c342f27fca061e423e174ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1979514Reviewed-by: Luke Halliwell (slow) <halliwell@chromium.org>
Commit-Queue: Gaofeng Huang <gfhuang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727201}

chromecast/app/BUILD.gn

@@ -19,6 +19,7 @@ cast_source_set("app") {
     "//chromecast/base",
     "//chromecast/browser",
     "//chromecast/common",
+    "//chromecast/common:resource_delegate",
     "//chromecast/gpu",
     "//chromecast/renderer",
     "//chromecast/utility",

chromecast/common/BUILD.gn

@@ -16,12 +16,22 @@ cast_source_set("queryable_data") {
   ]
 }
 
+cast_source_set("resource_delegate") {
+  sources = [
+    "cast_resource_delegate.cc",
+    "cast_resource_delegate.h",
+  ]
+  deps = [
+    "//base",
+    "//ui/base",
+    "//ui/gfx",
+  ]
+}
+
 cast_source_set("common") {
   sources = [
     "cast_content_client.cc",
     "cast_content_client.h",
-    "cast_resource_delegate.cc",
-    "cast_resource_delegate.h",
     "cast_url_loader_throttle.cc",
     "cast_url_loader_throttle.h",
     "global_descriptors.h",
@@ -37,7 +47,6 @@ cast_source_set("common") {
     "//net",
     "//services/network/public/cpp:cpp",
     "//ui/base",
-    "//ui/gfx",
     "//url:url",
   ]