Updated WebKit to 1a40220a82197023c1b1ac6eff027be6dd3168d3

Changes integrated:

|| <https://webkit.org/b/38179> || [Qt] QWebPage::setViewportSize() forces two layout of the render tree ||
|| <https://webkit.org/b/31719> || [Qt] Loading of large page can take up to 10 seconds ||

2 files changed, 15 insertions, 7 deletions

diff --git a/src/3rdparty/webkit/WebCore/ChangeLog b/src/3rdparty/webkit/WebCore/ChangeLog
index 35e48a7..7c340fd 100644
--- a/src/3rdparty/webkit/WebCore/ChangeLog
+++ b/src/3rdparty/webkit/WebCore/ChangeLog
@@ -1,5 +1,19 @@
 2010-04-29  Simon Hausmann  <simon.hausmann@nokia.com>
 
+        Reviewed by Kenneth Rohde Christiansen.
+
+        [Qt] Speed up text layouting
+        https://bugs.webkit.org/show_bug.cgi?id=31719
+
+        Use QFontMetrics::width() for the text width calculation instead
+        of QTextLayout. This avoids expensive bearing calculations and the
+        line breaking code.
+
+        * platform/graphics/qt/FontQt.cpp:
+        (WebCore::Font::floatWidthForComplexText):
+
+2010-04-29  Simon Hausmann  <simon.hausmann@nokia.com>
+
         Reviewed by Tor Arne Vestbø.
 
         [Qt] REGRESSION(r57638): tst_qwebframe::objectDeleted() fails
diff --git a/src/3rdparty/webkit/WebCore/platform/graphics/qt/FontQt.cpp b/src/3rdparty/webkit/WebCore/platform/graphics/qt/FontQt.cpp
index 8c6d600..1e92dcc 100644
--- a/src/3rdparty/webkit/WebCore/platform/graphics/qt/FontQt.cpp
+++ b/src/3rdparty/webkit/WebCore/platform/graphics/qt/FontQt.cpp
@@ -180,13 +180,7 @@ float Font::floatWidthForComplexText(const TextRun& run, HashSet<const SimpleFon
     String sanitized = Font::normalizeSpaces(String(run.characters(), run.length()));
     QString string = fromRawDataWithoutRef(sanitized);
 
-    QTextLayout layout(string, font());
-    QTextLine line = setupLayout(&layout, run);
-#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
-    int w = int(line.horizontalAdvance());
-#else
-    int w = int(line.naturalTextWidth());
-#endif
+    int w = QFontMetrics(font()).width(string);
     // WebKit expects us to ignore word spacing on the first character (as opposed to what Qt does)
     if (treatAsSpace(run[0]))
         w -= m_wordSpacing;