Fix more warnings on linux

Source/core/platform/animation/TimingFunction.h

Index: Source/core/platform/animation/TimingFunction.h
diff --git a/Source/core/platform/animation/TimingFunction.h b/Source/core/platform/animation/TimingFunction.h
index 39ce2b40bfc6523cd492ae701eefefc41c698288..342925772719f6112f7767545cc02fe44402e40d 100644
--- a/Source/core/platform/animation/TimingFunction.h
+++ b/Source/core/platform/animation/TimingFunction.h
@@ -274,11 +274,10 @@ public:
         RELEASE_ASSERT_WITH_MESSAGE(fraction >= 0 && fraction <= 1, "Web Animations not yet implemented: Timing function behavior outside the range [0, 1] is not yet specified");
         ASSERT(!m_segments.isEmpty());
         ASSERT(m_segments.last().max() == 1);
-        const Segment* segment;
-        for (size_t i = 0; i < m_segments.size(); ++i) {
-            segment = &m_segments[i];
-            if (fraction < segment->max())
-                break;
+        size_t i = 0;
+        const Segment* segment = &m_segments[i++];
+        while (fraction >= segment->max() && i < m_segments.size()) {
+            segment = &m_segments[i++];
         }
         return segment->evaluate(fraction, accuracy);
     }