[cc] Trace detailed tile info when --trace-all-rendered-frames

cc/layer_tree_debug_state.cc

Index: cc/layer_tree_debug_state.cc
diff --git a/cc/layer_tree_debug_state.cc b/cc/layer_tree_debug_state.cc
index 0f68b6a63427ac128579b2f9a473882ce43c06bc..28638d0824e87c1d5658d2d77ea01d81f6783094 100644
--- a/cc/layer_tree_debug_state.cc
+++ b/cc/layer_tree_debug_state.cc
@@ -22,7 +22,8 @@ LayerTreeDebugState::LayerTreeDebugState()
   , showOccludingRects(false)
   , showNonOccludingRects(false)
   , slowDownRasterScaleFactor(0)
-  , m_recordRenderingStats(false) { }
+  , m_recordRenderingStats(false)
+  , traceAllRenderedFrames(false) { }
 
 LayerTreeDebugState::~LayerTreeDebugState() {
 }
@@ -83,6 +84,7 @@ LayerTreeDebugState LayerTreeDebugState::unite(const LayerTreeDebugState& a, con
       r.slowDownRasterScaleFactor = b.slowDownRasterScaleFactor;
 
     r.m_recordRenderingStats |= b.m_recordRenderingStats;
+    r.traceAllRenderedFrames |= b.traceAllRenderedFrames;
 
     return r;
 }