Revert of Sets the default background color of inline signin and user manager to grey

content/browser/android/content_view_core_impl.cc

 // Copyright 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 1263 matching lines @@
       GetWebContents()->GetRoutingID(), rect));
 }
 
 jint ContentViewCoreImpl::GetCurrentRenderProcessId(JNIEnv* env, jobject obj) {
   return GetRenderProcessIdFromRenderViewHost(
       web_contents_->GetRenderViewHost());
 }
 
 void ContentViewCoreImpl::SetBackgroundOpaque(JNIEnv* env, jobject jobj,
     jboolean opaque) {
-  if (GetRenderWidgetHostViewAndroid()) {
-    if (opaque)
-      GetRenderWidgetHostViewAndroid()->SetBackgroundColorToDefault();
-    else
-      GetRenderWidgetHostViewAndroid()->SetBackgroundColor(SK_ColorTRANSPARENT);
-  }
+  if (GetRenderWidgetHostViewAndroid())
+    GetRenderWidgetHostViewAndroid()->SetBackgroundOpaque(opaque);
 }
 
 void ContentViewCoreImpl::RequestTextSurroundingSelection(
     int max_length,
     const base::Callback<
         void(const base::string16& content, int start_offset, int end_offset)>&
         callback) {
   DCHECK(!callback.is_null());
   RenderFrameHost* focused_frame = web_contents_->GetFocusedFrame();
   if (!focused_frame)
@@ skipping 42 matching lines @@
       reinterpret_cast<ui::WindowAndroid*>(window_android),
       retained_objects_set);
   return reinterpret_cast<intptr_t>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content