DevTools: Support media event listener breakpoints in frontend.

Source/devtools/front_end/sources/BreakpointsSidebarPane.js

Index: Source/devtools/front_end/sources/BreakpointsSidebarPane.js
diff --git a/Source/devtools/front_end/sources/BreakpointsSidebarPane.js b/Source/devtools/front_end/sources/BreakpointsSidebarPane.js
index ab6b8b18a74fb5998907077a0f77dd8379a198e4..f25eb0e605708d25a95321d8e3ed46d2044c5d6d 100644
--- a/Source/devtools/front_end/sources/BreakpointsSidebarPane.js
+++ b/Source/devtools/front_end/sources/BreakpointsSidebarPane.js
@@ -533,6 +533,7 @@ WebInspector.EventListenerBreakpointsSidebarPane = function()
     this._createCategory(WebInspector.UIString("Drag / drop"), ["dragenter", "dragover", "dragleave", "drop"]);
     this._createCategory(WebInspector.UIString("Keyboard"), ["keydown", "keyup", "keypress", "input"]);
     this._createCategory(WebInspector.UIString("Load"), ["load", "beforeunload", "unload", "abort", "error", "hashchange", "popstate"]);
+    this._createCategory(WebInspector.UIString("Media"), ["play", "pause", "playing", "canplay", "canplaythrough", "seeking", "seeked", "timeupdate", "ended", "ratechange", "durationchange", "volumechange", "loadstart", "progress", "suspend", "abort", "error", "emptied", "stalled", "loadedmetadata", "loadeddata", "waiting"], false, ["audio", "video"]);
     this._createCategory(WebInspector.UIString("Mouse"), ["click", "dblclick", "mousedown", "mouseup", "mouseover", "mousemove", "mouseout", "mousewheel", "wheel"]);
     this._createCategory(WebInspector.UIString("Timer"), ["setTimer", "clearTimer", "timerFired"], true);
     this._createCategory(WebInspector.UIString("Touch"), ["touchstart", "touchmove", "touchend", "touchcancel"]);