Extensions: suspend extension's scripts when V8 is paused

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 469d2a6dfebc9652f4e4de2fdaaf0b51b92f5eec..118e86046c7fc8cec7b16a6c210d7451711c8cde 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -8967,6 +8967,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Extensions.InjectEnd_BlockingScriptCount">
+  <owner>kalman@chromium.org</owner>
+  <owner>rdevlin.cronin@chromium.org</owner>
+  <summary>
+    Number of blocking scripts injected at document end by extensions.
+  </summary>
+</histogram>
+
 <histogram name="Extensions.InjectEnd_ScriptCount">
   <owner>kalman@chromium.org</owner>
   <owner>rdevlin.cronin@chromium.org</owner>
@@ -8981,6 +8989,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Extensions.InjectIdle_BlockingScriptCount">
+  <owner>kalman@chromium.org</owner>
+  <owner>rdevlin.cronin@chromium.org</owner>
+  <summary>
+    Number of blocking scripts injected at document idle by extensions.
+  </summary>
+</histogram>
+
 <histogram name="Extensions.InjectIdle_ScriptCount">
   <owner>kalman@chromium.org</owner>
   <owner>rdevlin.cronin@chromium.org</owner>
@@ -9001,6 +9017,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <summary>Time taken to inject all scripts by extensions.</summary>
 </histogram>
 
+<histogram name="Extensions.InjectStart_BlockingScriptCount">
+  <owner>kalman@chromium.org</owner>
+  <owner>rdevlin.cronin@chromium.org</owner>
+  <summary>
+    Number of blocking scripts injected at document start by extensions.
+  </summary>
+</histogram>
+
 <histogram name="Extensions.InjectStart_CssCount">
   <owner>kalman@chromium.org</owner>
   <owner>rdevlin.cronin@chromium.org</owner>
@@ -43831,7 +43855,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
     Frame times of Android wrench menu opening animation. For example, if the
     menu opening animation ran exactly at 60fps for a second, then each frame
     time is 16ms. Therefore total ~60 number of 16ms value will be recorded. If
-    the anmation was janky, we will see >16ms data points in the histogram.
+    the anmation was janky, we will see &gt;16ms data points in the histogram.
   </summary>
 </histogram>