Seperate horizontal and vertical overscrolling

content/browser/renderer_host/overscroll_configuration.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/public/browser/overscroll_configuration.h"
 
 #include "base/logging.h"
 
 namespace {
 
 float g_horiz_threshold_complete = 0.25f;
 float g_vert_threshold_complete = 0.20f;
 
-float g_min_threshold_start = 50.f;
+float g_horiz_threshold_start = 50.f;
+float g_vert_threshold_start = 0.f;
 
 float g_horiz_resist_after = 30.f;
 float g_vert_resist_after = 30.f;
 
 }
 
 namespace content {
 
 void SetOverscrollConfig(OverscrollConfig config, float value) {
   switch (config) {
     case OVERSCROLL_CONFIG_HORIZ_THRESHOLD_COMPLETE:
       g_horiz_threshold_complete = value;
       break;
 
     case OVERSCROLL_CONFIG_VERT_THRESHOLD_COMPLETE:
       g_vert_threshold_complete = value;
       break;
 
-    case OVERSCROLL_CONFIG_MIN_THRESHOLD_START:
-      g_min_threshold_start = value;
+    case OVERSCROLL_CONFIG_HORIZ_THRESHOLD_START:
+      g_horiz_threshold_start = value;
+      break;
+
+    case OVERSCROLL_CONFIG_VERT_THRESHOLD_START:
+      g_vert_threshold_start = value;
       break;
 
     case OVERSCROLL_CONFIG_HORIZ_RESIST_AFTER:
       g_horiz_resist_after = value;
       break;
 
     case OVERSCROLL_CONFIG_VERT_RESIST_AFTER:
       g_vert_resist_after = value;
       break;
 
     case OVERSCROLL_CONFIG_NONE:
     case OVERSCROLL_CONFIG_COUNT:
       NOTREACHED();
   }
 }
 
 float GetOverscrollConfig(OverscrollConfig config) {
   switch (config) {
     case OVERSCROLL_CONFIG_HORIZ_THRESHOLD_COMPLETE:
       return g_horiz_threshold_complete;
 
     case OVERSCROLL_CONFIG_VERT_THRESHOLD_COMPLETE:
       return g_vert_threshold_complete;
 
-    case OVERSCROLL_CONFIG_MIN_THRESHOLD_START:
-      return g_min_threshold_start;
+    case OVERSCROLL_CONFIG_HORIZ_THRESHOLD_START:
+      return g_horiz_threshold_start;
+
+    case OVERSCROLL_CONFIG_VERT_THRESHOLD_START:
+      return g_vert_threshold_start;
 
     case OVERSCROLL_CONFIG_HORIZ_RESIST_AFTER:
       return g_horiz_resist_after;
 
     case OVERSCROLL_CONFIG_VERT_RESIST_AFTER:
       return g_vert_resist_after;
 
     case OVERSCROLL_CONFIG_NONE:
     case OVERSCROLL_CONFIG_COUNT:
       NOTREACHED();
   }
 
   return -1.f;
 }
 
 }  // namespace content