Switch from WebMediaPlayer::maxTimeSeekable() to seekable()

BUG=417669

Review URL: https://codereview.chromium.org/599103003

Cr-Commit-Position: refs/heads/master@{#297395}

content/renderer/media/android/webmediaplayer_android.cc

@@ -64,7 +64,6 @@ static const int kSDKVersionToSupportSecurityOriginCheck = 20;
 using blink::WebMediaPlayer;
 using blink::WebSize;
 using blink::WebString;
-using blink::WebTimeRanges;
 using blink::WebURL;
 using gpu::gles2::GLES2Interface;
 using media::MediaPlayerAndroid;
@@ -514,19 +513,25 @@ WebMediaPlayer::ReadyState WebMediaPlayerAndroid::readyState() const {
   return ready_state_;
 }
 
-WebTimeRanges WebMediaPlayerAndroid::buffered() const {
+blink::WebTimeRanges WebMediaPlayerAndroid::buffered() const {
   if (media_source_delegate_)
     return media_source_delegate_->Buffered();
   return buffered_;
 }
 
-double WebMediaPlayerAndroid::maxTimeSeekable() const {
-  // If we haven't even gotten to ReadyStateHaveMetadata yet then just
-  // return 0 so that the seekable range is empty.
+blink::WebTimeRanges WebMediaPlayerAndroid::seekable() const {
+  // If we haven't even gotten to ReadyStateHaveMetadata yet then there
+  // are no seekable ranges.
   if (ready_state_ < WebMediaPlayer::ReadyStateHaveMetadata)
-    return 0.0;
+    return blink::WebTimeRanges();
 
-  return duration();
+  // If we have a duration then use [0, duration] as the seekable range.
+  const double seekable_end = duration();
+  if (!seekable_end)
+    return blink::WebTimeRanges();
+
+  blink::WebTimeRange seekable_range(0.0, seekable_end);
+  return blink::WebTimeRanges(&seekable_range, 1);
 }
 
 bool WebMediaPlayerAndroid::didLoadingProgress() {

content/renderer/media/android/webmediaplayer_android.h

@@ -112,7 +112,7 @@ class WebMediaPlayerAndroid : public blink::WebMediaPlayer,
   virtual void requestRemotePlayback();
   virtual void requestRemotePlaybackControl();
   virtual blink::WebTimeRanges buffered() const;
-  virtual double maxTimeSeekable() const;
+  virtual blink::WebTimeRanges seekable() const;
 
   // Poster image, as defined in the <video> element.
   virtual void setPoster(const blink::WebURL& poster) OVERRIDE;

content/renderer/media/webmediaplayer_ms.cc

@@ -309,9 +309,9 @@ blink::WebTimeRanges WebMediaPlayerMS::buffered() const {
   return buffered_;
 }
 
-double WebMediaPlayerMS::maxTimeSeekable() const {
+blink::WebTimeRanges WebMediaPlayerMS::seekable() const {
   DCHECK(thread_checker_.CalledOnValidThread());
-  return 0.0;
+  return blink::WebTimeRanges();
 }
 
 bool WebMediaPlayerMS::didLoadingProgress() {

content/renderer/media/webmediaplayer_ms.h

@@ -76,7 +76,7 @@ class WebMediaPlayerMS
   virtual void setVolume(double volume);
   virtual void setPreload(blink::WebMediaPlayer::Preload preload);
   virtual blink::WebTimeRanges buffered() const;
-  virtual double maxTimeSeekable() const;
+  virtual blink::WebTimeRanges seekable() const;
 
   // Methods for painting.
   virtual void paint(blink::WebCanvas* canvas,

media/blink/webmediaplayer_impl.cc

@@ -484,18 +484,25 @@ blink::WebTimeRanges WebMediaPlayerImpl::buffered() const {
   return ConvertToWebTimeRanges(buffered_time_ranges);
 }
 
-double WebMediaPlayerImpl::maxTimeSeekable() const {
+blink::WebTimeRanges WebMediaPlayerImpl::seekable() const {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
-  // If we haven't even gotten to ReadyStateHaveMetadata yet then just
-  // return 0 so that the seekable range is empty.
+  // If we haven't even gotten to ReadyStateHaveMetadata yet then there
+  // are no seekable ranges.
   if (ready_state_ < WebMediaPlayer::ReadyStateHaveMetadata)
-    return 0.0;
+    return blink::WebTimeRanges();
 
   // We don't support seeking in streaming media.
   if (data_source_ && data_source_->IsStreaming())
-    return 0.0;
-  return duration();
+    return blink::WebTimeRanges();
+
+  // If we have a duration then use [0, duration] as the seekable range.
+  const double seekable_end = duration();
+  if (!seekable_end)
+    return blink::WebTimeRanges();
+
+  blink::WebTimeRange seekable_range(0.0, seekable_end);
+  return blink::WebTimeRanges(&seekable_range, 1);
 }
 
 bool WebMediaPlayerImpl::didLoadingProgress() {

media/blink/webmediaplayer_impl.h

@@ -83,7 +83,7 @@ class MEDIA_EXPORT WebMediaPlayerImpl
   virtual void setVolume(double volume);
   virtual void setPreload(blink::WebMediaPlayer::Preload preload);
   virtual blink::WebTimeRanges buffered() const;
-  virtual double maxTimeSeekable() const;
+  virtual blink::WebTimeRanges seekable() const;
 
   // Methods for painting.
   virtual void paint(blink::WebCanvas* canvas,