Remove media controls when not in use.

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 35f8cd734ac77d7fa55aba347ec080f1add8dda1..5e946c6bda1f172b9a1c0f8f87594a55ab4f2619 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -410,7 +410,7 @@ bool HTMLMediaElement::supportsFocus() const
         return false;
 
     // If no controls specified, we should still be able to focus the element if it has tabIndex.
-    return controls() || HTMLElement::supportsFocus();
+    return shouldDisplayControls() || HTMLElement::supportsFocus();
 }
 
 bool HTMLMediaElement::isMouseFocusable() const
@@ -468,7 +468,7 @@ void HTMLMediaElement::finishParsingChildren()
 
 bool HTMLMediaElement::rendererIsNeeded(const RenderStyle& style)
 {
-    return controls() ? HTMLElement::rendererIsNeeded(style) : false;
+    return shouldDisplayControls() ? HTMLElement::rendererIsNeeded(style) : false;
 }
 
 RenderObject* HTMLMediaElement::createRenderer(RenderStyle*)
@@ -2297,6 +2297,11 @@ void HTMLMediaElement::setLoop(bool b)
 
 bool HTMLMediaElement::controls() const
 {
+    return fastHasAttribute(controlsAttr);
+}
+
+bool HTMLMediaElement::shouldDisplayControls() const
+{
     LocalFrame* frame = document().frame();
 
     // always show controls when scripting is disabled
@@ -2307,7 +2312,7 @@ bool HTMLMediaElement::controls() const
     if (isFullscreen())
         return true;
 
-    return fastHasAttribute(controlsAttr);
+    return controls();
 }
 
 void HTMLMediaElement::setControls(bool b)
@@ -3586,7 +3591,7 @@ bool HTMLMediaElement::createMediaControls()
 
     ensureUserAgentShadowRoot().appendChild(mediaControls);
 
-    if (!controls() || !inDocument())
+    if (!shouldDisplayControls() || !inDocument())
         mediaControls->hide();
 
     return true;
@@ -3594,7 +3599,7 @@ bool HTMLMediaElement::createMediaControls()
 
 void HTMLMediaElement::configureMediaControls()
 {
-    if (!controls() || !inDocument()) {
+    if (!shouldDisplayControls() || !inDocument()) {
         if (hasMediaControls())
             mediaControls()->hide();
         return;