Fix JS interface for synthetic smooth scroll.

content/renderer/gpu/gpu_benchmarking_extension.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/gpu/gpu_benchmarking_extension.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/file_util.h"
@@ skipping 265 matching lines @@
           "chrome.gpuBenchmarking.smoothScrollBy = "
           "    function(pixels_to_scroll, opt_callback, opt_start_x,"
           "             opt_start_y, opt_gesture_source_type,"
           "             opt_speed_in_pixels_s) {"
           "  pixels_to_scroll = pixels_to_scroll || 0;"
           "  callback = opt_callback || function() { };"
           "  gesture_source_type = opt_gesture_source_type ||"
           "      chrome.gpuBenchmarking.DEFAULT_INPUT;"
           "  speed_in_pixels_s = opt_speed_in_pixels_s || 800;"
           "  native function BeginSmoothScroll();"
-          "  if (typeof opt_mouse_event_x !== 'undefined' &&"
-          "      typeof opt_mouse_event_y !== 'undefined') {"
+          "  if (typeof opt_start_x !== 'undefined' &&"
+          "      typeof opt_start_y !== 'undefined') {"
           "    return BeginSmoothScroll(pixels_to_scroll, callback,"
           "                             gesture_source_type, speed_in_pixels_s,"
-          "                             opt_mouse_event_x, opt_mouse_event_y);"
+          "                             opt_start_x, opt_start_y);"
           "  } else {"
           "    return BeginSmoothScroll(pixels_to_scroll, callback,"
           "                             gesture_source_type,"
           "                             speed_in_pixels_s);"
           "  }"
           "};"
           "chrome.gpuBenchmarking.smoothScrollBySendsTouch = function() {"
           "  native function SmoothScrollSendsTouch();"
           "  return SmoothScrollSendsTouch();"
           "};"
@@ skipping 169 matching lines @@
     args.GetReturnValue().Set(false);
 #endif
   }
 
   static void BeginSmoothScroll(
       const v8::FunctionCallbackInfo<v8::Value>& args) {
     GpuBenchmarkingContext context;
     if (!context.Init(false))
       return;
 
-    // Account for the 2 optional arguments, mouse_event_x and mouse_event_y.
+    // Account for the 2 optional arguments, start_x and start_y.
     int arglen = args.Length();
     if (arglen < 4 ||
         !args[0]->IsNumber() ||
         !args[1]->IsFunction() ||
         !args[2]->IsNumber() ||
         !args[3]->IsNumber()) {
       args.GetReturnValue().Set(false);
       return;
     }
 
@@ skipping 230 matching lines @@
     GpuChannelHost* gpu_channel = RenderThreadImpl::current()->GetGpuChannel();
     args.GetReturnValue().Set(!!gpu_channel);
   }
 };
 
 v8::Extension* GpuBenchmarkingExtension::Get() {
   return new GpuBenchmarkingWrapper();
 }
 
 }  // namespace content