diff -r 000000000000 -r 4f2f89ce4247 WebKit/chromium/src/js/ProfilerAgent.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/chromium/src/js/ProfilerAgent.js	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2010 Google 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.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * 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.
+ */
+
+/**
+ * @fileoverview Provides communication interface to remote v8 profiler.
+ */
+
+/**
+ * @constructor
+ */
+devtools.ProfilerAgent = function()
+{
+    RemoteProfilerAgent.didGetActiveProfilerModules = this._didGetActiveProfilerModules.bind(this);
+    RemoteProfilerAgent.didGetLogLines = this._didGetLogLines.bind(this);
+
+    /**
+     * Profiler log position.
+     * @type {number}
+     */
+    this._logPosition = 0;
+
+    /**
+     * Last requested log position.
+     * @type {number}
+     */
+    this._lastRequestedLogPosition = -1;
+
+    /**
+     * Profiler processor instance.
+     * @type {devtools.profiler.Processor}
+     */
+    this._profilerProcessor = new devtools.profiler.Processor();
+};
+
+
+/**
+ * A copy of enum from include/v8.h
+ * @enum {number}
+ */
+devtools.ProfilerAgent.ProfilerModules = {
+    PROFILER_MODULE_NONE: 0,
+    PROFILER_MODULE_CPU: 1,
+    PROFILER_MODULE_HEAP_STATS: 1 << 1,
+    PROFILER_MODULE_JS_CONSTRUCTORS: 1 << 2,
+    PROFILER_MODULE_HEAP_SNAPSHOT: 1 << 16
+};
+
+
+/**
+ * Initializes profiling state.
+ */
+devtools.ProfilerAgent.prototype.initializeProfiling = function()
+{
+    this._getNextLogLines(false);
+};
+
+
+/**
+ * Requests the next chunk of log lines.
+ * @param {boolean} immediately Do not postpone the request.
+ * @private
+ */
+devtools.ProfilerAgent.prototype._getNextLogLines = function(immediately)
+{
+    if (this._lastRequestedLogPosition == this._logPosition)
+        return;
+    var pos = this._lastRequestedLogPosition = this._logPosition;
+    if (immediately)
+        RemoteProfilerAgent.getLogLines(pos);
+    else
+        setTimeout(function() { RemoteProfilerAgent.getLogLines(pos); }, 500);
+};
+
+
+/**
+ * Starts profiling.
+ * @param {number} modules List of modules to enable.
+ */
+devtools.ProfilerAgent.prototype.startProfiling = function(modules)
+{
+    if (modules & devtools.ProfilerAgent.ProfilerModules.PROFILER_MODULE_HEAP_SNAPSHOT) {
+        InspectorBackend.takeHeapSnapshot();
+        // Active modules will not change, instead, a snapshot will be logged.
+        this._getNextLogLines();
+    }
+};
+
+
+/**
+ * Handles current profiler status.
+ * @param {number} modules List of active (started) modules.
+ */
+devtools.ProfilerAgent.prototype._didGetActiveProfilerModules = function(modules)
+{
+};
+
+
+/**
+ * Handles a portion of a profiler log retrieved by getLogLines call.
+ * @param {number} pos Current position in log.
+ * @param {string} log A portion of profiler log.
+ */
+devtools.ProfilerAgent.prototype._didGetLogLines = function(pos, log)
+{
+    this._logPosition = pos;
+    if (log.length > 0) {
+        this._profilerProcessor.processLogChunk(log);
+        this._getNextLogLines();
+    } else {
+        // Allow re-reading from the last position.
+        this._lastRequestedLogPosition = this._logPosition - 1;
+    }
+};