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 22deeceae140713f581aa9689a8a2b422d6f3865..78d1e8af38fd6c3d36b137b09999763417e3e8a7 100644
--- a/ui/android/BUILD.gn
+++ b/ui/android/BUILD.gn
@@ -63,6 +63,7 @@ component("android") {
     "//cc/surfaces",
     "//cc/surfaces:surface_id",
     "//skia",
+    "//third_party/WebKit/public:blink_cursor_headers",
     "//ui/base",
     "//ui/display",
     "//ui/events",
@@ -229,7 +230,10 @@ android_library("ui_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") {