In order to show the poster image while casting a video, we pass the poster...

In order to show the poster image while casting a video, we pass the poster image URL to Android. Like favicons, it will be downloaded and be shown in the relevant activity & view.

Relevant CLs:
Blink: https://codereview.chromium.org/131763011/
Chrome for Android: https://chrome-internal-review.googlesource.com/#/c/153405/

BUG=333260
NOTRY=true

Review URL: https://codereview.chromium.org/135863004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251361 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/media/android/browser_media_player_manager.cc

@@ -132,6 +132,7 @@ bool BrowserMediaPlayerManager::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_Seek, OnSeek)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_Pause, OnPause)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_SetVolume, OnSetVolume)
+    IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_SetPoster, OnSetPoster)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_Release, OnReleaseResources)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_DestroyMediaPlayer, OnDestroyPlayer)
     IPC_MESSAGE_HANDLER(MediaPlayerHostMsg_DestroyAllMediaPlayers,
@@ -567,6 +568,10 @@ void BrowserMediaPlayerManager::OnSetVolume(int player_id, double volume) {
     player->SetVolume(volume);
 }
 
+void BrowserMediaPlayerManager::OnSetPoster(int player_id, const GURL& url) {
+  // To be overridden by subclasses.
+}
+
 void BrowserMediaPlayerManager::OnReleaseResources(int player_id) {
   MediaPlayerAndroid* player = GetPlayer(player_id);
   if (player)

content/browser/media/android/browser_media_player_manager.h

@@ -135,6 +135,7 @@ class CONTENT_EXPORT BrowserMediaPlayerManager
   virtual void OnSeek(int player_id, const base::TimeDelta& time);
   virtual void OnPause(int player_id, bool is_media_related_action);
   virtual void OnSetVolume(int player_id, double volume);
+  virtual void OnSetPoster(int player_id, const GURL& poster);
   virtual void OnReleaseResources(int player_id);
   virtual void OnDestroyPlayer(int player_id);
   virtual void ReleaseFullscreenPlayer(media::MediaPlayerAndroid* player);

content/common/media/media_player_messages_android.h

@@ -237,11 +237,16 @@ IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_Seek,
 // Start the player for playback.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_Start, int /* player_id */)
 
-// Start the player for playback.
+// Set the volume.
 IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_SetVolume,
                     int /* player_id */,
                     double /* volume */)
 
+// Set the poster image.
+IPC_MESSAGE_ROUTED2(MediaPlayerHostMsg_SetPoster,
+                    int /* player_id */,
+                    GURL /* poster url */)
+
 // Requests the player to enter fullscreen.
 IPC_MESSAGE_ROUTED1(MediaPlayerHostMsg_EnterFullscreen, int /* player_id */)
 

content/renderer/media/android/renderer_media_player_manager.cc

@@ -106,6 +106,10 @@ void RendererMediaPlayerManager::SetVolume(int player_id, double volume) {
   Send(new MediaPlayerHostMsg_SetVolume(routing_id(), player_id, volume));
 }
 
+void RendererMediaPlayerManager::SetPoster(int player_id, const GURL& poster) {
+  Send(new MediaPlayerHostMsg_SetPoster(routing_id(), player_id, poster));
+}
+
 void RendererMediaPlayerManager::ReleaseResources(int player_id) {
   Send(new MediaPlayerHostMsg_Release(routing_id(), player_id));
 }

content/renderer/media/android/renderer_media_player_manager.h

@@ -64,6 +64,9 @@ class RendererMediaPlayerManager : public RenderViewObserver {
   // Sets the player volume.
   void SetVolume(int player_id, double volume);
 
+  // Sets the poster image.
+  void SetPoster(int player_id, const GURL& poster);
+
   // Releases resources for the player.
   void ReleaseResources(int player_id);
 

content/renderer/media/android/webmediaplayer_android.cc

@@ -36,6 +36,7 @@
 #include "net/base/mime_util.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerClient.h"
 #include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
@@ -1057,6 +1058,10 @@ void WebMediaPlayerAndroid::SetNeedsEstablishPeer(bool needs_establish_peer) {
   needs_establish_peer_ = needs_establish_peer;
 }
 
+void WebMediaPlayerAndroid::setPoster(const blink::WebURL& poster) {
+  manager_->SetPoster(player_id_, poster);
+}
+
 void WebMediaPlayerAndroid::UpdatePlayingState(bool is_playing) {
   is_playing_ = is_playing;
   if (!delegate_)

content/renderer/media/android/webmediaplayer_android.h

@@ -37,6 +37,7 @@ class MessageLoopProxy;
 
 namespace blink {
 class WebFrame;
+class WebURL;
 }
 
 namespace gpu {
@@ -100,6 +101,9 @@ class WebMediaPlayerAndroid
   virtual const blink::WebTimeRanges& buffered();
   virtual double maxTimeSeekable() const;
 
+  // Poster image, as defined in the <video> element.
+  virtual void setPoster(const blink::WebURL& poster) OVERRIDE;
+
   // Methods for painting.
   virtual void paint(blink::WebCanvas* canvas,
                      const blink::WebRect& rect,