Fix gn check issues for chrome/browser/image_decoder

This CL adds some deps and reenables gn check for
chrome/browser/image_decoder.

Bug: 1106053
Change-Id: I6a424059a39bb02880d13a6e916198615e1f4582
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299850Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#788849}

.gn

@@ -58,7 +58,6 @@ default_args = {
 no_check_targets = [
   # //chrome/*, https://crbug.com/949535
   "//chrome/browser/devtools:*",  # 114 errors
-  "//chrome/browser/image_decoder:*",  # 2 errors
   "//chrome/browser/media/kaleidoscope/internal:*",  # 19 errors
   "//chrome/browser/media/router/discovery:*",  # 26 errors
   "//chrome/browser/media/router:*",  # 225 errors

chrome/browser/image_decoder/BUILD.gn

@@ -32,9 +32,11 @@ if (!is_android) {
     ]
 
     deps = [
+      ":image_decoder",
       "//base",
       "//chrome/app:generated_resources",
       "//chrome/test:test_support",
+      "//chrome/test:test_support_ui",
       "//content/public/browser",
       "//content/test:test_support",
       "//ui/base",