Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

ui/base/BUILD.gn

Index: ui/base/BUILD.gn
diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
index 58f2b5fd70f2dc9e387c8cab82043a43289013da..0ab0d1c2ba1cf99f267cbcb470b11fc7bf611e24 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -308,11 +308,18 @@ component("base") {
   ]
 
   if (build_ime) {
-    if (!is_android) {
+    if (is_android) {
+      deps += [ "//cc" ]
+    } else {
       deps += [ "//ui/events" ]
     }
 
     sources += [
+      "ime/android/cursor_anchor_info_builder.cc",
+      "ime/android/cursor_anchor_info_builder.h",
+      "ime/android/cursor_anchor_info_controller.cc",
+      "ime/android/cursor_anchor_info_controller.h",
+      "ime/android/cursor_anchor_info_sender.h",
       "ime/candidate_window.cc",
       "ime/candidate_window.h",
       "ime/chromeos/character_composer.cc",
@@ -715,6 +722,7 @@ if (is_android) {
   generate_jni("ui_base_jni_headers") {
     sources = [
       "../android/java/src/org/chromium/ui/base/Clipboard.java",
+      "../android/java/src/org/chromium/ui/base/CursorAnchorInfoBuilder.java",
       "../android/java/src/org/chromium/ui/base/DeviceFormFactor.java",
       "../android/java/src/org/chromium/ui/base/LocalizationUtils.java",
       "../android/java/src/org/chromium/ui/base/ResourceBundle.java",
@@ -781,6 +789,7 @@ if (!is_android) {
 
     if (build_ime) {
       sources += [
+        "ime/android/cursor_anchor_info_controller_unittest.cc",
         "ime/candidate_window_unittest.cc",
         "ime/chromeos/character_composer_unittest.cc",
         "ime/input_method_base_unittest.cc",