Fix Tab.getWebContents for downstream instrumentation tests

chrome/browser/android/tab_android.cc

Index: chrome/browser/android/tab_android.cc
diff --git a/chrome/browser/android/tab_android.cc b/chrome/browser/android/tab_android.cc
index c0fcd6eeb0afd6824b5dd94085f2387d94e84f58..e56e5e949b40b243d0096184319dbe7ae2f5de54 100644
--- a/chrome/browser/android/tab_android.cc
+++ b/chrome/browser/android/tab_android.cc
@@ -440,14 +440,6 @@ void TabAndroid::DestroyWebContents(JNIEnv* env,
   }
 }
 
-base::android::ScopedJavaLocalRef<jobject> TabAndroid::GetWebContents(
-    JNIEnv* env,
-    jobject obj) {
-  if (!web_contents_.get())
-    return base::android::ScopedJavaLocalRef<jobject>();
-  return web_contents_->GetJavaWebContents();
-}
-
 base::android::ScopedJavaLocalRef<jobject> TabAndroid::GetProfileAndroid(
     JNIEnv* env,
     jobject obj) {