Initiate webfont download right after style recalc

Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 780 matching lines @@
     // Now do rest of the properties.
     if (keyframe->properties())
         applyMatchedProperties<LowPriorityProperties>(state, result, false, 0, result.matchedProperties.size() - 1, inheritedOnly);
 
     // If our font got dirtied by one of the non-essential font props,
     // go ahead and update it a second time.
     updateFont(state);
 
     // Start loading resources referenced by this style.
     m_styleResourceLoader.loadPendingResources(state.style(), state.elementStyleResources());
+    m_fontSelector->loadPendingFonts();
 
     didAccess();
 
     return state.takeStyle();
 }
 
 void StyleResolver::keyframeStylesForAnimation(Element* e, const RenderStyle& elementStyle, KeyframeList& list)
 {
     ASSERT(!RuntimeEnabledFeatures::webAnimationsCSSEnabled());
     list.clear();
@@ skipping 140 matching lines @@
     // Line-height is set when we are sure we decided on the font-size.
     if (state.lineHeightValue())
         StyleBuilder::applyProperty(CSSPropertyLineHeight, state, state.lineHeightValue());
 
     applyMatchedProperties<LowPriorityProperties>(state, result, false, 0, result.matchedProperties.size() - 1, inheritedOnly);
 
     addContentAttrValuesToFeatures(state.contentAttrValues(), m_features);
 
     // Start loading resources referenced by this style.
     m_styleResourceLoader.loadPendingResources(state.style(), state.elementStyleResources());
+    m_fontSelector->loadPendingFonts();
 
     didAccess();
 
     // Now return the style.
     return state.takeStyle();
 }
 
 void StyleResolver::collectViewportRules()
 {
     viewportStyleResolver()->collectViewportRules(CSSDefaultStyleSheets::defaultStyle, ViewportStyleResolver::UserAgentOrigin);
@@ skipping 369 matching lines @@
     state.cacheUserAgentBorderAndBackground();
 
     // Now do the author and user normal priority properties and all the !important properties.
     applyMatchedProperties<LowPriorityProperties>(state, matchResult, false, matchResult.ranges.lastUARule + 1, matchResult.matchedProperties.size() - 1, applyInheritedOnly);
     applyMatchedProperties<LowPriorityProperties>(state, matchResult, true, matchResult.ranges.firstAuthorRule, matchResult.ranges.lastAuthorRule, applyInheritedOnly);
     applyMatchedProperties<LowPriorityProperties>(state, matchResult, true, matchResult.ranges.firstUserRule, matchResult.ranges.lastUserRule, applyInheritedOnly);
     applyMatchedProperties<LowPriorityProperties>(state, matchResult, true, matchResult.ranges.firstUARule, matchResult.ranges.lastUARule, applyInheritedOnly);
 
     // Start loading resources referenced by this style.
     m_styleResourceLoader.loadPendingResources(state.style(), state.elementStyleResources());
+    m_fontSelector->loadPendingFonts();
 
     if (!cachedMatchedProperties && cacheHash && MatchedPropertiesCache::isCacheable(element, state.style(), state.parentStyle())) {
         INCREMENT_STYLE_STATS_COUNTER(*this, matchedPropertyCacheAdded);
         m_matchedPropertiesCache.add(state.style(), state.parentStyle(), cacheHash, matchResult);
     }
 
     applyAnimatedProperties(state, animatingElement);
 
     ASSERT(!state.fontBuilder().fontDirty());
 }
@@ skipping 65 matching lines @@
 bool StyleResolver::affectedByViewportChange() const
 {
     for (unsigned i = 0; i < m_viewportDependentMediaQueryResults.size(); ++i) {
         if (m_medium->eval(&m_viewportDependentMediaQueryResults[i]->m_expression) != m_viewportDependentMediaQueryResults[i]->m_result)
             return true;
     }
     return false;
 }
 
 } // namespace WebCore