Encapsulate implementation-specific timeline record handling in TimelineUIUtils

Source/devtools/front_end/timeline/TimelineUIUtils.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 /**
+ * @constructor
  */
 WebInspector.TimelineUIUtils = function() { }
 
+WebInspector.TimelineUIUtils.prototype = {
+    /**
+     * @param {!WebInspector.TimelineModel.Record} record
+     * @return {boolean}
+     */
+    isBeginFrame: function(record)
+    {
+        throw new Error("Not implemented.");
+    },
+    /**
+     * @param {!WebInspector.TimelineModel.Record} record
+     * @return {boolean}
+     */
+    isProgram: function(record)
+    {
+        throw new Error("Not implemented.");
+    },
+    /**
+     * @param {string} recordType
+     * @return {boolean}
+     */
+    isCoalescable: function(recordType)
+    {
+        throw new Error("Not implemented.");
+    },
+    /**
+     * @param {!WebInspector.TimelineModel.Record} record
+     * @return {?Object}
+     */
+    countersForRecord: function(record)
+    {
+        throw new Error("Not implemented.");
+    },
+    /**
+     * @param {!WebInspector.TimelineModel.Record} record
+     * @return {?Object}
+     */
+    highlightQuadForRecord: function(record)
+    {
+        throw new Error("Not implemented.");
+    }
+}
+
 /**
  * @return {!Object.<string, !WebInspector.TimelineCategory>}
  */
 WebInspector.TimelineUIUtils.categories = function()
 {
     if (WebInspector.TimelineUIUtils._categories)
         return WebInspector.TimelineUIUtils._categories;
     WebInspector.TimelineUIUtils._categories = {
         loading: new WebInspector.TimelineCategory("loading", WebInspector.UIString("Loading"), 0, "hsl(214, 53%, 58%)", "hsl(214, 67%, 90%)", "hsl(214, 67%, 74%)", "hsl(214, 67%, 66%)"),
         scripting: new WebInspector.TimelineCategory("scripting", WebInspector.UIString("Scripting"), 1, "hsl(43, 90%, 45%)", "hsl(43, 83%, 90%)", "hsl(43, 83%, 72%)", "hsl(43, 83%, 64%) "),
@@ skipping 58 matching lines @@
     recordStyles[recordTypes.WebSocketCreate] = { title: WebInspector.UIString("Create WebSocket"), category: categories["scripting"] };
     recordStyles[recordTypes.WebSocketSendHandshakeRequest] = { title: WebInspector.UIString("Send WebSocket Handshake"), category: categories["scripting"] };
     recordStyles[recordTypes.WebSocketReceiveHandshakeResponse] = { title: WebInspector.UIString("Receive WebSocket Handshake"), category: categories["scripting"] };
     recordStyles[recordTypes.WebSocketDestroy] = { title: WebInspector.UIString("Destroy WebSocket"), category: categories["scripting"] };
     recordStyles[recordTypes.EmbedderCallback] = { title: WebInspector.UIString("Embedder Callback"), category: categories["scripting"] };
 
     WebInspector.TimelineUIUtils._recordStylesMap = recordStyles;
     return recordStyles;
 }
 
-WebInspector.TimelineUIUtils.coalescableRecordTypes = {};
-WebInspector.TimelineUIUtils.coalescableRecordTypes[WebInspector.TimelineModel.RecordType.Layout] = 1;
-WebInspector.TimelineUIUtils.coalescableRecordTypes[WebInspector.TimelineModel.RecordType.Paint] = 1;
-WebInspector.TimelineUIUtils.coalescableRecordTypes[WebInspector.TimelineModel.RecordType.Rasterize] = 1;
-WebInspector.TimelineUIUtils.coalescableRecordTypes[WebInspector.TimelineModel.RecordType.DecodeImage] = 1;
-WebInspector.TimelineUIUtils.coalescableRecordTypes[WebInspector.TimelineModel.RecordType.ResizeImage] = 1;
-
 /**
  * @param {!WebInspector.TimelineModel.Record} record
  * @return {!{title: string, category: !WebInspector.TimelineCategory}}
  */
 WebInspector.TimelineUIUtils.recordStyle = function(record)
 {
     return WebInspector.TimelineUIUtils.styleForTimelineEvent(record.type());
 }
 
 /**
@@ skipping 847 matching lines @@
         for (var i = 0; i < stackTrace.length; ++i) {
             var stackFrame = stackTrace[i];
             var row = stackTraceElement.createChild("div");
             row.createTextChild(stackFrame.functionName || WebInspector.UIString("(anonymous function)"));
             row.createTextChild(" @ ");
             var urlElement = this._linkifier.linkifyLocation(this._target, stackFrame.url, stackFrame.lineNumber - 1);
             row.appendChild(urlElement);
         }
     }
 }