Initialize the minimum timer interval upon RenderView construction,...

Initialize the minimum timer interval upon RenderView construction,
not during WebPreferences application, and base the interval on the
initial hidden state of the view.

This fixes a bug introduced late in the development of the minimum
timer interval for background tabs, and also will fix
http://code.google.com/p/chromium/issues/detail?id=73726 once the
minimum timer interval is increased again.

BUG=66078
TEST=manual tests


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=75700

[Ken Russell (switch to Gerrit), 2011-02-23 00:15:42]

Please review. Thanks.

[darin (slow to review), 2011-02-23 01:00:12]

LGTM

http://codereview.chromium.org/6546080/diff/1/chrome/renderer/render_view.cc
File chrome/renderer/render_view.cc (right):

http://codereview.chromium.org/6546080/diff/1/chrome/renderer/render_view.cc#...
chrome/renderer/render_view.cc:631: webkit_glue::kForegroundTabTimerInterval);
nit: it is more common to indent this line so that the two values are vertically
on top of one another:

  is_hidden() ? webkit_glue::kBackgroundTabTimerInterval :
                webkit_glue::kForegroundTabTimerInterval;