Remove disable-embedded-shared-worker flag and shared worker process related codes.

chrome/browser/memory_details.cc

Index: chrome/browser/memory_details.cc
diff --git a/chrome/browser/memory_details.cc b/chrome/browser/memory_details.cc
index 7c74e231cc7b6022468b607722c78dd3a529edd1..878462d84ec8136a642b84ca823edb9b23e2eb88 100644
--- a/chrome/browser/memory_details.cc
+++ b/chrome/browser/memory_details.cc
@@ -472,10 +472,6 @@ void MemoryDetails::UpdateHistograms() {
         UMA_HISTOGRAM_MEMORY_KB("Memory.Plugin", sample);
         plugin_count++;
         continue;
-      case content::PROCESS_TYPE_WORKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Worker", sample);
-        worker_count++;
-        continue;
       case content::PROCESS_TYPE_UTILITY:
         UMA_HISTOGRAM_MEMORY_KB("Memory.Utility", sample);
         other_count++;
@@ -584,9 +580,6 @@ void MemoryDetails::UpdateSwapHistograms() {
       case content::PROCESS_TYPE_PLUGIN:
         UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Plugin", sample);
         continue;
-      case content::PROCESS_TYPE_WORKER:
-        UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Worker", sample);
-        continue;
       case content::PROCESS_TYPE_UTILITY:
         UMA_HISTOGRAM_MEMORY_KB("Memory.Swap.Utility", sample);
         continue;