Enabling autoplay and fullscreen for downloaded media

chrome/browser/android/tab_android.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 "chrome/browser/android/tab_android.h"
 
 #include <stddef.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 55 matching lines @@
 #include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/browser_controls_state.h"
 #include "content/public/common/resource_request_body.h"
+#include "content/public/common/web_preferences.h"
 #include "jni/Tab_jni.h"
 #include "net/base/escape.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "ui/android/view_android.h"
 #include "ui/android/window_android.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
@@ skipping 33 matching lines @@
 void TabAndroid::AttachTabHelpers(content::WebContents* web_contents) {
   DCHECK(web_contents);
 
   TabHelpers::AttachTabHelpers(web_contents);
 }
 
 TabAndroid::TabAndroid(JNIEnv* env, const JavaRef<jobject>& obj)
     : weak_java_tab_(env, obj),
       content_layer_(cc::Layer::Create()),
       tab_content_manager_(NULL),
-      synced_tab_delegate_(new browser_sync::SyncedTabDelegateAndroid(this)) {
+      synced_tab_delegate_(new browser_sync::SyncedTabDelegateAndroid(this)),
+      embedded_media_experience_enabled_(false) {
   Java_Tab_setNativePtr(env, obj, reinterpret_cast<intptr_t>(this));
 }
 
 TabAndroid::~TabAndroid() {
   GetContentLayer()->RemoveAllChildren();
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_Tab_clearNativePtr(env, weak_java_tab_.get(env));
 }
 
 base::android::ScopedJavaLocalRef<jobject> TabAndroid::GetJavaObject() {
@@ skipping 569 matching lines @@
       env, *offline_page);
 }
 
 bool TabAndroid::HasPrerenderedUrl(JNIEnv* env,
                                    const JavaParamRef<jobject>& obj,
                                    const JavaParamRef<jstring>& url) {
   GURL gurl(base::android::ConvertJavaStringToUTF8(env, url));
   return HasPrerenderedUrl(gurl);
 }
 
+void TabAndroid::EnableEmbeddedMediaExperience(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    jboolean enabled) {
+  embedded_media_experience_enabled_ = enabled;
+
+  if (!web_contents() || !web_contents()->GetRenderViewHost())
+    return;
+
+  web_contents()->GetRenderViewHost()->OnWebkitPreferencesChanged();
+}
+
+bool TabAndroid::ShouldEnableEmbeddedMediaExperience() const {
+  return embedded_media_experience_enabled_;

[David Trainor- moved to gerrit, 2017/02/23 21:15:25]

Had a talk offline.  Follow up is maybe we can check the URL here to make sure
it's a file scheme.  Either that or I'm fine without the observer. :)

[shaktisahu, 2017/02/23 22:43:27]

Actually I checked this. We can't add that check here since we set the flag
before loading the file URL :). Since this tab is used for a one-time use only,
I think it should be okay to leave this flag here.

+}
+
 namespace {
 
 class ChromeInterceptNavigationDelegate : public InterceptNavigationDelegate {
  public:
   ChromeInterceptNavigationDelegate(JNIEnv* env, jobject jdelegate)
       : InterceptNavigationDelegate(env, jdelegate) {}
 
   bool ShouldIgnoreNavigation(
       const NavigationParams& navigation_params) override {
     NavigationParams chrome_navigation_params(navigation_params);
@@ skipping 46 matching lines @@
 static void Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   TRACE_EVENT0("native", "TabAndroid::Init");
   // This will automatically bind to the Java object and pass ownership there.
   new TabAndroid(env, obj);
 }
 
 // static
 bool TabAndroid::RegisterTabAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }