[Feed Internals] Add button to force Feed refresh

Add an action to trigger a force refresh of the Feed from the internals
debugging page, without clearing the cache.

Bug: 940675
Change-Id: Iaf28eba69a7f611f801a57948bc0e9da4d3f32a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1531427
Reviewed-by: Ken Buchanan <[email protected]>
Reviewed-by: Sky Malice <[email protected]>
Commit-Queue: Natalie Chouinard <[email protected]>
Cr-Commit-Position: refs/heads/master@{#642721}
diff --git a/chrome/browser/android/feed/feed_debugging_bridge.cc b/chrome/browser/android/feed/feed_debugging_bridge.cc
index bb259795..89a455fcf 100644
--- a/chrome/browser/android/feed/feed_debugging_bridge.cc
+++ b/chrome/browser/android/feed/feed_debugging_bridge.cc
@@ -24,4 +24,9 @@
   return ConvertJavaStringToUTF8(env, j_string);
 }
 
+void TriggerRefreshForDebugging() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_FeedDebuggingBridge_triggerRefresh(env);
+}
+
 }  // namespace feed