Move the user interaction policy for FirstMeaningfulPaint UMA into renderer

third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp

Index: third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp b/third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp
index 1eedaf29c68fd9c46c27f40fb557d90bca7c62d4..4b598e93ce145a4b81e84dc6626cfba394e0fbc4 100644
--- a/third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp
+++ b/third_party/WebKit/Source/core/paint/FirstMeaningfulPaintDetectorTest.cpp
@@ -56,6 +56,8 @@ class FirstMeaningfulPaintDetectorTest : public testing::Test {
     Detector().Network2QuietTimerFired(nullptr);
   }
 
+  void SimulateUserInput() { Detector().NotifyInputEvent(); }
+
   void SetActiveConnections(int connections) {
     Detector().SetNetworkQuietTimers(connections);
   }
@@ -249,4 +251,21 @@ TEST_F(FirstMeaningfulPaintDetectorTest, Network2QuietTimer) {
   EXPECT_TRUE(HadNetwork2Quiet());
 }
 
+TEST_F(FirstMeaningfulPaintDetectorTest,
+       FirstMeaningfulPaintAfterUserInteraction) {
+  GetPaintTiming().MarkFirstContentfulPaint();
+  SimulateUserInput();
+  SimulateLayoutAndPaint(10);
+  SimulateNetworkStable();
+  EXPECT_EQ(GetPaintTiming().FirstMeaningfulPaint(), 0.0);
+}
+
+TEST_F(FirstMeaningfulPaintDetectorTest, UserInteractionBeforeFirstPaint) {
+  SimulateUserInput();
+  GetPaintTiming().MarkFirstContentfulPaint();
+  SimulateLayoutAndPaint(10);
+  SimulateNetworkStable();
+  EXPECT_NE(GetPaintTiming().FirstMeaningfulPaint(), 0.0);
+}
+
 }  // namespace blink