Added UMA collection for fullscreen / mouse lock bubble re-shows.

chrome/browser/ui/exclusive_access/fullscreen_controller.cc

Index: chrome/browser/ui/exclusive_access/fullscreen_controller.cc
diff --git a/chrome/browser/ui/exclusive_access/fullscreen_controller.cc b/chrome/browser/ui/exclusive_access/fullscreen_controller.cc
index 95f0d40ea09f9fbcb43b350fadbdba96db594f98..1f223d7a8e3091ecf05917df4f94a7f5dc836a02 100644
--- a/chrome/browser/ui/exclusive_access/fullscreen_controller.cc
+++ b/chrome/browser/ui/exclusive_access/fullscreen_controller.cc
@@ -7,6 +7,7 @@
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "build/build_config.h"
@@ -40,6 +41,13 @@ using base::UserMetricsAction;
 using content::RenderViewHost;
 using content::WebContents;
 
+namespace {
+
+const char kBubbleReshowsHistogramName[] =
+    "ExclusiveAccess.BubbleReshowsPerSession.Fullscreen";
+
+}  // namespace
+
 FullscreenController::FullscreenController(ExclusiveAccessManager* manager)
     : ExclusiveAccessControllerBase(manager),
       state_prior_to_tab_fullscreen_(STATE_INVALID),
@@ -420,6 +428,11 @@ void FullscreenController::NotifyTabExclusiveAccessLost() {
   }
 }
 
+void FullscreenController::RecordBubbleReshowsHistogram(
+    int bubble_reshow_count) {
+  UMA_HISTOGRAM_COUNTS_100(kBubbleReshowsHistogramName, bubble_reshow_count);
+}
+
 void FullscreenController::ToggleFullscreenModeInternal(
     FullscreenInternalOption option) {
 #if defined(OS_WIN)
@@ -499,6 +512,7 @@ void FullscreenController::EnterFullscreenModeInternal(
 }
 
 void FullscreenController::ExitFullscreenModeInternal() {
+  RecordExitingUMA();
   toggled_into_fullscreen_ = false;
 #if defined(OS_MACOSX)
   // Mac windows report a state change instantly, and so we must also clear