Make calls to AtomicString(const String&) explicit in html/

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
diff --git a/Source/core/html/HTMLMediaElement.cpp b/Source/core/html/HTMLMediaElement.cpp
index d0654b41cbff8d044e34b5f2b2786eec99212547..a04e46243c9a05c1bc0456af6eccd1b8566f04aa 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -2081,9 +2081,9 @@ String HTMLMediaElement::preload() const
     return String();
 }
 
-void HTMLMediaElement::setPreload(const String& preload)
+void HTMLMediaElement::setPreload(const AtomicString& preload)
 {
-    WTF_LOG(Media, "HTMLMediaElement::setPreload(%s)", preload.utf8().data());
+    WTF_LOG(Media, "HTMLMediaElement::setPreload(%s)", preload.string().utf8().data());

[eseidel, 2013/12/31 23:22:35]

I'm a little surprsied that AtomicSTring doens't have a utf8 accessor yet.

I had wanted STringView to be something like this.  A common interface onto all
UChar buffers which exposed string-like fuctions w/o actually holding onto its
data.  But we we haven't gotten to that yet.

[Inactive, 2014/01/01 19:26:29]

Right, this would be convenient. I will propose this in a follow-up CL as I know
it would be useful in other places as well.

     setAttribute(preloadAttr, preload);
 }
 
@@ -2534,7 +2534,7 @@ void HTMLMediaElement::removeAllInbandTracks()
     }
 }
 
-PassRefPtr<TextTrack> HTMLMediaElement::addTextTrack(const String& kind, const String& label, const String& language, ExceptionState& exceptionState)
+PassRefPtr<TextTrack> HTMLMediaElement::addTextTrack(const AtomicString& kind, const AtomicString& label, const AtomicString& language, ExceptionState& exceptionState)
 {
     ASSERT(RuntimeEnabledFeatures::videoTrackEnabled());