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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef WEBKIT_GLUE_WEBKIT_CONSTANTS_H_
      6 #define WEBKIT_GLUE_WEBKIT_CONSTANTS_H_
      7 
      8 namespace webkit_glue {
      9 
     10 // Chromium sets the minimum interval timeout to 4ms, overriding the
     11 // default of 10ms.  We'd like to go lower, however there are poorly
     12 // coded websites out there which do create CPU-spinning loops.  Using
     13 // 4ms prevents the CPU from spinning too busily and provides a balance
     14 // between CPU spinning and the smallest possible interval timer.
     15 const double kForegroundTabTimerInterval = 0.004;
     16 
     17 // Provides control over the minimum timer interval for background tabs.
     18 const double kBackgroundTabTimerInterval = 1.0;
     19 
     20 } // namespace webkit_glue
     21 
     22 #endif  // WEBKIT_GLUE_WEBKIT_CONSTANTS_H_
     23