Support setting mouse cursor icon in Android N.

ui/android/BUILD.gn

Index: ui/android/BUILD.gn
diff --git a/ui/android/BUILD.gn b/ui/android/BUILD.gn
index ef0f1d705bdea2616a1f4f096640d8ce22a3f118..22dc3334ee693ac1cb0fb10b2d99d4737d8c6081 100644
--- a/ui/android/BUILD.gn
+++ b/ui/android/BUILD.gn
@@ -61,6 +61,7 @@ component("android") {
     "//components/viz/host",
     "//components/viz/service",
     "//skia",
+    "//third_party/WebKit/public:blink_headers",
     "//ui/base",
     "//ui/display",
     "//ui/events",
@@ -247,7 +248,10 @@ android_library("ui_full_java") {
     "//third_party/android_tools:android_support_annotations_java",
     "//third_party/android_tools:android_support_v7_appcompat_java",
   ]
-  srcjar_deps = [ ":java_enums_srcjar" ]
+  srcjar_deps = [
+    ":java_enums_srcjar",
+    "//third_party/WebKit/public:blink_cursor_type_java_enums_srcjar",
+  ]
 }
 
 junit_binary("ui_junit_tests") {