Notification action icons prototype.

ui/gfx/android/java_bitmap.cc

Index: ui/gfx/android/java_bitmap.cc
diff --git a/ui/gfx/android/java_bitmap.cc b/ui/gfx/android/java_bitmap.cc
index ea0a50fe6a927e133d71336bbcfbe2274cda9d3a..77b29766b5b9d90eec0120b9de6aacfd6bbd5381 100644
--- a/ui/gfx/android/java_bitmap.cc
+++ b/ui/gfx/android/java_bitmap.cc
@@ -6,6 +6,7 @@
 
 #include <android/bitmap.h>
 
+#include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/logging.h"
 #include "jni/BitmapHelper_jni.h"
@@ -86,6 +87,27 @@ ScopedJavaLocalRef<jobject> ConvertToJavaBitmap(const SkBitmap* skbitmap) {
   return jbitmap;
 }
 
+ScopedJavaLocalRef<jobjectArray> ConvertToJavaBitmaps(
+    const std::vector<SkBitmap>& skbitmaps) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jclass> clazz =
+      base::android::GetClass(env, "android/graphics/Bitmap");
+  jobjectArray array = env->NewObjectArray(skbitmaps.size(), clazz.obj(),
+                                           nullptr /* initialElement */);
+  base::android::CheckException(env);
+
+  for (size_t i = 0; i < skbitmaps.size(); ++i) {
+    if (skbitmaps[i].drawsNothing()) {
+      env->SetObjectArrayElement(array, i, nullptr);
+    } else {
+      env->SetObjectArrayElement(array, i,
+                                 ConvertToJavaBitmap(&(skbitmaps[i])).obj());
+    }
+  }
+
+  return ScopedJavaLocalRef<jobjectArray>(env, array);
+}
+
 SkBitmap CreateSkBitmapFromJavaBitmap(const JavaBitmap& jbitmap) {
   DCHECK(!jbitmap.size().IsEmpty());
   DCHECK_GT(jbitmap.stride(), 0U);