[chromecast] Fix JNI method invoke for gesture handled callback

Follow-up after fixing the JNI classname; unfortunately previous
CL was mistakenly thought to fix the issue but the bug remained.

This CL fixes:

  * Classname signature (missing $)
  * Method signature (extraneous ';')
  * Calling method (Should be CallVoidMethod)

Tested on physical Android things device.

Bug: internal b/159235968
Test: manual on device
Change-Id: I5907ab842740e697e80d757a2f96485ba63c7f32
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2276242Reviewed-by: Alex Sakhartchouk <alexst@chromium.org>
Reviewed-by: Randy Rossi <rmrossi@chromium.org>
Commit-Queue: Ryan Daum <rdaum@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784137}

chromecast/browser/android/cast_content_window_android.cc

@@ -39,7 +39,7 @@ constexpr char kContextInteractionId[] = "interactionId";
 constexpr char kContextConversationId[] = "conversationId";
 constexpr char kGestureConsumedCallbackClassName[] =
     "org/chromium/chromecast/shell/"
-    "CastWebContentsComponent.GestureHandledCallback";
+    "CastWebContentsComponent$GestureHandledCallback";
 
 // Wraps the JNI gesture consumption handled callback for invocation from C++.
 class GestureConsumedCallbackWrapper {
@@ -52,11 +52,14 @@ class GestureConsumedCallbackWrapper {
         base::android::GetClass(env_, kGestureConsumedCallbackClassName));
     callback_method_id_ =
         base::android::MethodID::Get<base::android::MethodID::TYPE_INSTANCE>(
-            env_, class_.obj(), "invoke", "(Z;)V");
+            env_, class_.obj(), "invoke",
+            "(Z"  // boolean handled
+            ")V");
   }
 
   void Invoke(bool handled) {
-    env_->CallObjectMethod(callback_.obj(), callback_method_id_, &handled);
+    jboolean handled_value(handled);
+    env_->CallVoidMethod(callback_.obj(), callback_method_id_, handled_value);
   }
 
  private: