[Chromecast] Turn CastContentWindow into an abstract interface.

chromecast/browser/android/cast_window_android.cc

-// Copyright 2014 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 "chromecast/browser/android/cast_window_android.h"
-
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "chromecast/base/version.h"
-#include "chromecast/browser/android/cast_window_manager.h"
-#include "chromecast/browser/cast_content_window.h"
-#include "content/public/browser/devtools_agent_host.h"
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/common/renderer_preferences.h"
-#include "jni/CastWindowAndroid_jni.h"
-#include "ui/gfx/skia_util.h"
-
-namespace chromecast {
-namespace shell {
-
-namespace {
-
-// The time (in milliseconds) we wait for after a page is closed (i.e.
-// after an app is stopped) before we delete the corresponding WebContents.
-const int kWebContentsDestructionDelayInMs = 50;
-
-}  // namespace
-
-// static
-CastWindowAndroid* CastWindowAndroid::CreateNewWindow(
-    content::BrowserContext* browser_context,
-    const GURL& url) {
-  CastWindowAndroid* window_android = new CastWindowAndroid(browser_context);
-  window_android->Initialize();
-
-  if (!url.is_empty())
-    window_android->LoadURL(url);
-
-  content::RenderWidgetHostView* rwhv =
-      window_android->web_contents_->GetRenderWidgetHostView();
-  if (rwhv) {
-    rwhv->SetBackgroundColor(SK_ColorBLACK);
-  }
-
-  return window_android;
-}
-
-CastWindowAndroid::CastWindowAndroid(content::BrowserContext* browser_context)
-    : browser_context_(browser_context),
-      content_window_(new CastContentWindow),
-      weak_factory_(this) {
-}
-
-void CastWindowAndroid::Initialize() {
-  web_contents_ = content_window_->CreateWebContents(browser_context_);
-  web_contents_->SetDelegate(this);
-  content::WebContentsObserver::Observe(web_contents_.get());
-
-  JNIEnv* env = base::android::AttachCurrentThread();
-  window_java_.Reset(CreateCastWindowView(this));
-
-  Java_CastWindowAndroid_initFromNativeWebContents(
-      env, window_java_, web_contents_->GetJavaWebContents(),
-      web_contents_->GetRenderProcessHost()->GetID(),
-      base::android::ConvertUTF8ToJavaString(env, PRODUCT_VERSION));
-
-  // Enabling hole-punching also requires runtime renderer preference
-  content::RendererPreferences* prefs =
-      web_contents_->GetMutableRendererPrefs();
-  prefs->use_video_overlay_for_embedded_encrypted_video = true;
-  web_contents_->GetRenderViewHost()->SyncRendererPrefs();
-}
-
-CastWindowAndroid::~CastWindowAndroid() {
-}
-
-void CastWindowAndroid::Close() {
-  // Close page first, which fires the window.unload event. The WebContents
-  // itself will be destroyed after browser-process has received renderer
-  // notification that the page is closed.
-  web_contents_->ClosePage();
-}
-
-void CastWindowAndroid::Destroy() {
-  // Note: if multiple windows becomes supported, this may close other devtools
-  // sessions.
-  content::DevToolsAgentHost::DetachAllClients();
-  CloseCastWindowView(window_java_.obj());
-  delete this;
-}
-
-void CastWindowAndroid::LoadURL(const GURL& url) {
-  content::NavigationController::LoadURLParams params(url);
-  params.transition_type = ui::PageTransitionFromInt(
-      ui::PAGE_TRANSITION_TYPED |
-      ui::PAGE_TRANSITION_FROM_ADDRESS_BAR);
-  web_contents_->GetController().LoadURLWithParams(params);
-  web_contents_->Focus();
-}
-
-void CastWindowAndroid::AddNewContents(content::WebContents* source,
-                                       content::WebContents* new_contents,
-                                       WindowOpenDisposition disposition,
-                                       const gfx::Rect& initial_rect,
-                                       bool user_gesture,
-                                       bool* was_blocked) {
-  NOTIMPLEMENTED();
-  if (was_blocked) {
-    *was_blocked = true;
-  }
-}
-
-void CastWindowAndroid::CloseContents(content::WebContents* source) {
-  DCHECK_EQ(source, web_contents_.get());
-
-  // We need to delay the deletion of web_contents_ (currently for 50ms) to
-  // give (and guarantee) the renderer enough time to finish 'onunload'
-  // handler (but we don't want to wait any longer than that to delay the
-  // starting of next app).
-  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&CastWindowAndroid::Destroy, weak_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(kWebContentsDestructionDelayInMs));
-}
-
-bool CastWindowAndroid::CanOverscrollContent() const {
-  return false;
-}
-
-bool CastWindowAndroid::DidAddMessageToConsole(
-    content::WebContents* source,
-    int32_t level,
-    const base::string16& message,
-    int32_t line_no,
-    const base::string16& source_id) {
-  return false;
-}
-
-void CastWindowAndroid::ActivateContents(content::WebContents* contents) {
-  DCHECK_EQ(contents, web_contents_.get());
-  contents->GetRenderViewHost()->GetWidget()->Focus();
-}
-
-base::android::ScopedJavaLocalRef<jobject>
-CastWindowAndroid::GetContentVideoViewEmbedder() {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  return Java_CastWindowAndroid_getContentVideoViewEmbedder(env, window_java_);
-}
-
-void CastWindowAndroid::RenderProcessGone(base::TerminationStatus status) {
-  LOG(ERROR) << "Render process gone: status=" << status;
-  Destroy();
-}
-
-}  // namespace shell
-}  // namespace chromecast