cc: Don't let invalidations that we're going to handle immediately cause an extra commit.

cc/content_layer.cc

Index: cc/content_layer.cc
diff --git a/cc/content_layer.cc b/cc/content_layer.cc
index 20c95561c79b685782b7b66b2fa975493fd37a55..df6ae8826d44399d2cf270bb6e6d0d41b5efbe8f 100644
--- a/cc/content_layer.cc
+++ b/cc/content_layer.cc
@@ -4,6 +4,7 @@
 
 #include "cc/content_layer.h"
 
+#include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "base/metrics/histogram.h"
 #include "base/time.h"
@@ -69,8 +70,12 @@ void ContentLayer::setTexturePriorities(const PriorityCalculator& priorityCalc)
 
 void ContentLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker* occlusion, RenderingStats& stats)
 {
-    createUpdaterIfNeeded();
-    updateUseLCDText();
+    {
+        base::AutoReset<bool> ignoreSetNeedsCommit(&m_ignoreSetNeedsCommit, true);
+
+        createUpdaterIfNeeded();
+        updateUseLCDText();
+    }
 
     TiledLayer::update(queue, occlusion, stats);
     m_needsDisplay = false;