Add support for Android spellcheck menu in Chrome/WebViews

third_party/WebKit/Source/core/editing/BUILD.gn

Index: third_party/WebKit/Source/core/editing/BUILD.gn
diff --git a/third_party/WebKit/Source/core/editing/BUILD.gn b/third_party/WebKit/Source/core/editing/BUILD.gn
index 55605712fab11802134fc0a25fd38838b5103b71..e57610ed874a2fccbeae2957955b45d661b4a0db 100644
--- a/third_party/WebKit/Source/core/editing/BUILD.gn
+++ b/third_party/WebKit/Source/core/editing/BUILD.gn
@@ -276,6 +276,10 @@ blink_core_sources("editing") {
     "state_machines/StateMachineUtil.h",
     "state_machines/TextSegmentationMachineState.cpp",
     "state_machines/TextSegmentationMachineState.h",
+    "suggestion/TextSuggestionBackendImpl.cpp",
+    "suggestion/TextSuggestionBackendImpl.h",
+    "suggestion/TextSuggestionController.cpp",
+    "suggestion/TextSuggestionController.h",
   ]
 
   if (is_mac) {
@@ -357,6 +361,7 @@ source_set("unit_tests") {
     "state_machines/StateMachineTestUtil.cpp",
     "state_machines/StateMachineTestUtil.h",
     "state_machines/StateMachineUtilTest.cpp",
+    "suggestion/TextSuggestionControllerTest.cpp",
   ]
 
   configs += [