Add WebContents accessor in ContentViewCore interface.

content/browser/android/content_view_core_impl.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 "content/browser/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 236 matching lines @@
 
 ScopedJavaLocalRef<jstring> ContentViewCoreImpl::GetTitle(
     JNIEnv* env, jobject obj) const {
   return ConvertUTF16ToJavaString(env, web_contents()->GetTitle());
 }
 
 jboolean ContentViewCoreImpl::IsIncognito(JNIEnv* env, jobject obj) {
   return web_contents()->GetBrowserContext()->IsOffTheRecord();
 }
 
+WebContents* ContentViewCoreImpl::web_contents() const {
+  return web_contents_;
+}
+
 jboolean ContentViewCoreImpl::TouchEvent(JNIEnv* env,
                                          jobject obj,
                                          jlong time_ms,
                                          jint type,
                                          jobjectArray pts) {
   RenderWidgetHostViewAndroid* rwhv = GetRenderWidgetHostViewAndroid();
   if (rwhv) {
     using WebKit::WebTouchEvent;
     WebKit::WebTouchEvent event;
     TouchPoint::BuildWebTouchEvent(env, type, time_ms, pts, event);
@@ skipping 439 matching lines @@
   if (!HasField(env, clazz, "mNativeContentViewCore", "I")) {
     DLOG(ERROR) << "Unable to find ContentView.mNativeContentViewCore!";
     return false;
   }
   g_native_content_view = GetFieldID(env, clazz, "mNativeContentViewCore", "I");
 
   return RegisterNativesImpl(env) >= 0;
 }
 
 }  // namespace content