Remove Navigation Transitions from Chromium

chrome/browser/android/transition_page_helper.cc

-// Copyright 2015 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/transition_page_helper.h"
-
-#include "cc/layers/layer.h"
-#include "chrome/browser/android/tab_android.h"
-#include "chrome/browser/ui/android/window_android_helper.h"
-#include "content/public/browser/android/content_view_core.h"
-#include "content/public/browser/web_contents.h"
-#include "jni/TransitionPageHelper_jni.h"
-
-// TODO(simonhatch): Why does 1.f opacity seem to kill per-pixel alpha?
-const float TRANSITION_MAX_OPACITY = 0.99999f;
-
-TransitionPageHelper* TransitionPageHelper::FromJavaObject(JNIEnv* env,
-                                                           jobject jobj) {
-  return reinterpret_cast<TransitionPageHelper*>(
-      Java_TransitionPageHelper_getNativePtr(env, jobj));
-}
-
-TransitionPageHelper::TransitionPageHelper() {
-}
-
-TransitionPageHelper::~TransitionPageHelper() {
-}
-
-void TransitionPageHelper::Destroy(JNIEnv* env, jobject jobj) {
-  delete this;
-}
-
-void TransitionPageHelper::SetWebContents(JNIEnv* env,
-                                          jobject jobj,
-                                          jobject jcontent_view_core) {
-  content::ContentViewCore* content_view_core =
-      content::ContentViewCore::GetNativeContentViewCore(env,
-                                                         jcontent_view_core);
-  DCHECK(content_view_core);
-  DCHECK(content_view_core->GetWebContents());
-
-  web_contents_.reset(content_view_core->GetWebContents());
-}
-
-void TransitionPageHelper::ReleaseWebContents(JNIEnv* env, jobject jobj) {
-  DCHECK(web_contents_.get());
-  web_contents_.reset();
-}
-
-void TransitionPageHelper::SetOpacity(JNIEnv* env,
-                                      jobject jobj,
-                                      jobject jcontent_view_core,
-                                      jfloat opacity) {
-  content::ContentViewCore* content_view_core =
-      content::ContentViewCore::GetNativeContentViewCore(env,
-                                                         jcontent_view_core);
-  if (!content_view_core)
-    return;
-
-  content_view_core->GetLayer()->SetOpacity(
-      std::min(opacity, TRANSITION_MAX_OPACITY));
-}
-
-static jlong Init(JNIEnv* env, jobject obj) {
-  return reinterpret_cast<long>(new TransitionPageHelper());
-}
-
-bool TransitionPageHelper::Register(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}