Replace media::Limits struct with media::limits namespace and update documentation.

webkit/media/webmediaplayer_impl.cc

Index: webkit/media/webmediaplayer_impl.cc
diff --git a/webkit/media/webmediaplayer_impl.cc b/webkit/media/webmediaplayer_impl.cc
index 7df55e657cf7b3f7471512f87fc0c8dda99d8356..8e095b116266af6746c73dca3d2b513516a70e1f 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -498,7 +498,7 @@ float WebMediaPlayerImpl::duration() const {
   DCHECK_EQ(main_loop_, MessageLoop::current());
 
   base::TimeDelta duration = pipeline_->GetMediaDuration();
-  if (duration.InMicroseconds() == media::Limits::kMaxTimeInMicroseconds)
+  if (duration.InMicroseconds() == media::limits::kMaxTimeInMicroseconds)

[Ami GONE FROM CHROMIUM, 2011/12/03 02:11:38]

I *think* this is the only place that cares about \infty and would want to use
the constant I proposed earlier.
But I find myself wondering whether webkit really wants to be getting back
infinity for this float (if it doesn't, then probably the constant and the logic
around it don't need to exist).

[scherkus (not reviewing), 2011/12/06 02:05:57]

we use infinity to represent an unbounded stream/duration unknown stream:
http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-me...

     return std::numeric_limits<float>::infinity();
   return static_cast<float>(duration.InSecondsF());
 }
@@ -588,10 +588,10 @@ void WebMediaPlayerImpl::paint(WebCanvas* canvas,
 
   // Make sure we don't create a huge canvas.
   // TODO(hclam): Respect the aspect ratio.
-  if (scaled_width > static_cast<int>(media::Limits::kMaxCanvas))
-    scaled_width = media::Limits::kMaxCanvas;
-  if (scaled_height > static_cast<int>(media::Limits::kMaxCanvas))
-    scaled_height = media::Limits::kMaxCanvas;
+  if (scaled_width > static_cast<int>(media::limits::kMaxCanvas))
+    scaled_width = media::limits::kMaxCanvas;
+  if (scaled_height > static_cast<int>(media::limits::kMaxCanvas))
+    scaled_height = media::limits::kMaxCanvas;
 
   // If there is no preexisting platform canvas, or if the size has
   // changed, recreate the canvas.  This is to avoid recreating the bitmap