Support setting mouse cursor icon in Android N.

content/public/android/BUILD.gn

Index: content/public/android/BUILD.gn
diff --git a/content/public/android/BUILD.gn b/content/public/android/BUILD.gn
index 8c73adfc15386759a7756dcf3e3f3688ae554732..b431c81b2a963ebfad6ccbeac9f62f2469849f76 100644
--- a/content/public/android/BUILD.gn
+++ b/content/public/android/BUILD.gn
@@ -397,6 +397,7 @@ android_library("content_javatests") {
     "//net/android:net_java_test_support",
     "//third_party/android_support_test_runner:rules_java",
     "//third_party/android_support_test_runner:runner_java",
+    "//third_party/android_tools:android_support_annotations_java",
     "//third_party/junit",
     "//ui/android:ui_java",
     "//ui/gfx/geometry/mojo:mojo_java",
@@ -410,6 +411,7 @@ android_library("content_javatests") {
     "javatests/src/org/chromium/content/browser/ContentCommandLineTest.java",
     "javatests/src/org/chromium/content/browser/ContentViewCoreSelectionTest.java",
     "javatests/src/org/chromium/content/browser/ContentViewLocationTest.java",
+    "javatests/src/org/chromium/content/browser/ContentViewPointerTypeTest.java",
     "javatests/src/org/chromium/content/browser/ContentViewPopupZoomerTest.java",
     "javatests/src/org/chromium/content/browser/ContentViewScrollingTest.java",
     "javatests/src/org/chromium/content/browser/EncodeHtmlDataUriTest.java",
@@ -461,6 +463,9 @@ android_library("content_javatests") {
   data_deps = [
     "//net:test_support",
   ]
+
+  srcjar_deps =
+      [ "//third_party/WebKit/public:blink_cursor_type_java_enums_srcjar" ]
 }
 
 junit_binary("content_junit_tests") {