Combine action parameters sent to Android displayNotification

- Combine the 4 notification action arrays sent through JNI
into a single array of ActionInfo java objects

- Pass action type as a java-exported enum/int

BUG=650302

Review-Url: https://chromiumcodereview.appspot.com/2440483002
Cr-Commit-Position: refs/heads/master@{#426535}
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index cfb583d4..1a79738 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -3853,6 +3853,7 @@
       "../android/java/src/org/chromium/chrome/browser/mojo/ChromeInterfaceRegistrar.java",
       "../android/java/src/org/chromium/chrome/browser/net/qualityprovider/ExternalEstimateProviderAndroid.java",
       "../android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java",
+      "../android/java/src/org/chromium/chrome/browser/notifications/ActionInfo.java",
       "../android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java",
       "../android/java/src/org/chromium/chrome/browser/ntp/ForeignSessionHelper.java",
       "../android/java/src/org/chromium/chrome/browser/ntp/LogoBridge.java",