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 629367372f8a5a3c82344eb86ef116bcc1446ac0..c05459f79f67bf80080852866d018423d60946a9 100644
--- a/third_party/WebKit/Source/core/editing/BUILD.gn
+++ b/third_party/WebKit/Source/core/editing/BUILD.gn
@@ -281,6 +281,10 @@ 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) {
@@ -362,6 +366,7 @@ source_set("unit_tests") {
     "state_machines/StateMachineTestUtil.cpp",
     "state_machines/StateMachineTestUtil.h",
     "state_machines/StateMachineUtilTest.cpp",
+    "suggestion/TextSuggestionControllerTest.cpp",
   ]
 
   configs += [