Add missing deps on //chrome/common:service_process_mojom.

//chrome/browser correctly lists //chrome/common:service_process_mojom
in its public_deps. However, //chrome/browser/extensions and
//chrome/browser/ui are listed in allow_circular_includes_from, allowing
them to include headers from //chrome/browser without a dependency. Add
explicit dependencies from //chrome/browser/extensions and
//chrome/browser/ui to //chrome/common:service_process_mojom.

Bug: 805916
Change-Id: I83c2c7588e8056d413b9cccc8f5eceeb203986d7
Reviewed-on: https://chromium-review.googlesource.com/890686
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532517}

chrome/browser/extensions/BUILD.gn

@@ -1111,6 +1111,7 @@ static_library("extensions") {
       "api/cloud_print_private/cloud_print_private_api.cc",
       "api/cloud_print_private/cloud_print_private_api.h",
     ]
+    deps += [ "//chrome/common:service_process_mojom" ]
   }
 
   if (enable_service_discovery) {

chrome/browser/ui/BUILD.gn

@@ -3674,6 +3674,9 @@ split_static_library("ui") {
       "webui/local_discovery/local_discovery_ui_handler.cc",
       "webui/local_discovery/local_discovery_ui_handler.h",
     ]
+    if (enable_print_preview && !is_chromeos) {
+      deps += [ "//chrome/common:service_process_mojom" ]
+    }
   }
 
   if (enable_webrtc) {