Fix Tab.getWebContents for downstream instrumentation tests

chrome/browser/android/tab_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/tab_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/debug/trace_event.h"
@@ skipping 422 matching lines @@
 
   if (delete_native) {
     web_contents_.reset();
     synced_tab_delegate_->ResetWebContents();
   } else {
     // Release the WebContents so it does not get deleted by the scoped_ptr.
     ignore_result(web_contents_.release());
   }
 }
 
-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) {
   Profile* profile = GetProfile();
   if (!profile)
     return base::android::ScopedJavaLocalRef<jobject>();
   ProfileAndroid* profile_android = ProfileAndroid::FromProfile(profile);
   if (!profile_android)
     return base::android::ScopedJavaLocalRef<jobject>();
 
@@ skipping 199 matching lines @@
 
 static void Init(JNIEnv* env, jobject obj) {
   TRACE_EVENT0("native", "TabAndroid::Init");
   // This will automatically bind to the Java object and pass ownership there.
   new TabAndroid(env, obj);
 }
 
 bool TabAndroid::RegisterTabAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }