Adding overflow menu to media player

third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h

Index: third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h
diff --git a/third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h b/third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h
index cabfb86e924f2d3dcca320a6ce64e7e978cad6fb..ba750b6db6bad09481f028f618a2ecbce615b6ee 100644
--- a/third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h
+++ b/third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h
@@ -34,6 +34,7 @@
 #include "core/html/HTMLDivElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/layout/LayoutBlock.h"
+#include "public/platform/WebLocalizedString.h"
 
 namespace blink {
 
@@ -89,6 +90,25 @@ public:
 
     MediaControlElementType displayType() const { return m_displayType; }
 
+    // By default, media controls elements are not added to the overflow menu.
+    // Controls that can be added to the overflow menu should override this
+    // function and return true.
+    virtual bool hasOverflowButton() { return false; }
+
+    // If true, shows the overflow menu item if it exists. Hides it if false.
+    void shouldShowButtonInOverflowMenu(bool);
+
+    // Creates an overflow menu HTML element.
+    virtual Element* initOverflowButton(MediaControls&) { return nullptr; }
+
+    // Returns a string representation of the media control element. Used for
+    // the overflow menu.
+    String getText();
+
+    // Returns a string representation of the media control element.
+    // TODO: default value should be changed
+    virtual WebLocalizedString::Name getOverflowStringName() { return WebLocalizedString::AXAMPMFieldText; }
+
     DECLARE_VIRTUAL_TRACE();
 
 protected:
@@ -103,6 +123,11 @@ protected:
 
     void setDisplayType(MediaControlElementType);
 
+    // Represents the overflow menu element for this media control.
+    // The Element contains the button that the user can click on, but having
+    // the button within an Element enables us to style the overflow menu.
+    Member<Element> m_overflowMenuElement;
+
 private:
     // Hide or show based on our fits / wanted state.  We want to show
     // if and only if we're wanted and we fit.
@@ -136,6 +161,9 @@ class MediaControlInputElement : public HTMLInputElement, public MediaControlEle
 public:
     DECLARE_VIRTUAL_TRACE();
 
+    // Creates an overflow menu element with the given button as a child.
+    HTMLLabelElement* createOverflowMenuElement(MediaControls&, MediaControlInputElement*);
+
 protected:
     MediaControlInputElement(MediaControls&, MediaControlElementType);