Fix build breakage on clankium gn-release-builder-l

This is a missing part of https://codereview.chromium.org/873133002/ .

BUG=426751

Review URL: https://codereview.chromium.org/883183002

Cr-Commit-Position: refs/heads/master@{#313775}

content/public/android/BUILD.gn

@@ -111,6 +111,7 @@ java_cpp_enum("content_public_android_java_enums_srcjar") {
     "//content/browser/android/gesture_event_type.h",
     "//content/browser/gamepad/gamepad_standard_mappings.h",
     "//content/public/browser/navigation_controller.h",
+    "//content/public/common/console_message_level.h",
     "//content/public/common/result_codes.h",
     "//content/public/common/screen_orientation_values.h",
     "//content/public/common/speech_recognition_error.h",
@@ -123,6 +124,7 @@ java_cpp_enum("content_public_android_java_enums_srcjar") {
     "org/chromium/content/browser/input/PopupItemType.java",
     "org/chromium/content_public/browser/navigation_controller/LoadURLType.java",
     "org/chromium/content_public/browser/navigation_controller/UserAgentOverrideOption.java",
+    "org/chromium/content_public/common/ConsoleMessageLevel.java",
     "org/chromium/content_public/common/ResultCode.java",
     "org/chromium/content_public/common/ScreenOrientationValues.java",
     "org/chromium/content_public/common/SpeechRecognitionErrorCode.java",