Add UMA metrics to measure the effectiveness of views fuzzing

chrome/browser/ui/views/frame/browser_root_view.cc

Index: chrome/browser/ui/views/frame/browser_root_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_root_view.cc b/chrome/browser/ui/views/frame/browser_root_view.cc
index 44cd1dc92034a79280b87c5ee83fd6a102a8b271..ebce9d5aefba9db9bab55860637e65513601064d 100644
--- a/chrome/browser/ui/views/frame/browser_root_view.cc
+++ b/chrome/browser/ui/views/frame/browser_root_view.cc
@@ -21,6 +21,12 @@
 #include "ui/base/dragdrop/os_exchange_data.h"
 #include "ui/base/l10n/l10n_util.h"
 
+#if defined(USE_ASH)
+#include "ash/touch/touch_uma.h"
+
+using ash::internal::TouchUMA;
+#endif
+
 // static
 const char BrowserRootView::kViewClassName[] =
     "browser/ui/views/frame/BrowserRootView";
@@ -119,6 +125,18 @@ const char* BrowserRootView::GetClassName() const {
   return kViewClassName;
 }
 
+#if defined(USE_ASH)
+void BrowserRootView::DispatchGestureEvent(ui::GestureEvent* event) {
+  if (event->type() == ui::ET_GESTURE_TAP &&
+      event->location().y() <= 0 &&
+      event->location().x() <= browser_view_->GetBounds().width())
+    TouchUMA::GetInstance()->RecordGestureAction(

[sky, 2013/06/26 23:42:55]

use {} since condition is multi-line.

[tdanderson, 2013/06/27 22:39:33]

Done.

+        TouchUMA::GESTURE_ROOTVIEWTOP_TAP);
+
+  RootView::DispatchGestureEvent(event);
+}
+#endif
+
 bool BrowserRootView::ShouldForwardToTabStrip(
     const ui::DropTargetEvent& event) {
   if (!tabstrip()->visible())