Web Inspector: Fonts refactoring
https://bugs.webkit.org/show_bug.cgi?id=113047

Patch by Alexei Filippov <alph@chromium.org> on 2013-03-30
Reviewed by Pavel Feldman.

Unify fonts usage across inspector.
Make inspector default font depend on platform.

Source/WebCore:

* inspector/front-end/breakpointsList.css:
* inspector/front-end/dataGrid.css:
(.data-grid):
(.data-grid table):
(.data-grid td):
(.data-grid th.sort-ascending > div::after):
(.data-grid th.sort-descending > div::after):
(.data-grid button):
* inspector/front-end/heapProfiler.css:
(.heap-snapshot-view .class-view-toolbar input.class-name-filter):
(.heap-snapshot-view .retainers-view-header):
* inspector/front-end/inspector.css:
(.toolbar-item):
(.toolbar-label):
(.console-message .bubble):
(.outline-disclosure > ol):
(.source-code):
(.scope-bar li):
(.sidebar-tree, .sidebar-tree .children):
(.sidebar-tree-section):
(li .status .bubble):
(.sidebar-tree-item.selected):
(.sidebar-tree-item .titles):
(.sidebar-tree-item .subtitle):
(.sidebar-tree-item.selected .subtitle):
(.source-frame-breakpoint-message):
(.soft-context-menu):
* inspector/front-end/inspectorCommon.css:
(body):
(.resources-divider-label):
* inspector/front-end/navigatorView.css:
(.navigator li):
(.navigator li.selected .selection):
(.navigator .base-navigator-tree-element-title):
* inspector/front-end/networkLogView.css:
(.network-log-grid.data-grid td):
(.network-log-grid.data-grid.small td):
(.network-log-grid.data-grid th):
(.network-log-grid.data-grid select):
(.network-graph-label):
(.network-timeline-grid .resources-divider-label):
(.network-log-grid.data-grid .network-summary-bar td):
* inspector/front-end/resourcesPanel.css:
(.resources.panel .sidebar li):
(.resources.panel .sidebar li.selected):
(.resources.panel .sidebar li.selected .selection):
* inspector/front-end/sidebarPane.css:
(.sidebar-pane > .body .info):
(.sidebar-pane-title):
(.sidebar-pane-toolbar):
(.sidebar-pane-subtitle):
* inspector/front-end/tabbedPane.css:
(.tabbed-pane-header-tab):
(.tabbed-pane-header-tab-close-button):
(select.tabbed-pane-header-tabs-drop-down-select):
* inspector/front-end/timelinePanel.css:
(.memory-counter-value):

Source/WebKit/chromium:

* src/js/devTools.css:
(body.platform-linux):
(body.platform-mac):
(body.platform-windows):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147275 268f45cc-cd09-0410-ab3c-d52691b4dbfc