Add histogram logging for fragment root UIA entry points.

Bug: 1096223
AX-Relnotes: n/a
Change-Id: I7685e4e5b828a1d2ecc04398735506dde482dcf1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2250786Reviewed-by: Kevin Babbitt <kbabbitt@microsoft.com>
Commit-Queue: Jacques Newman <janewman@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#780092}

tools/metrics/histograms/enums.xml

@@ -695,6 +695,16 @@ uploading your change for review.  These are checked by presubmit scripts.
   <int value="245" label="UMA_API_WINDOW_GET_ISTOPMOST">
     UIA Window.get_IsTopmost
   </int>
+  <int value="246" label="UMA_API_ELEMENT_PROVIDER_FROM_POINT">
+    UIA FragmentRoot.ElementProviderFromPoint
+  </int>
+  <int value="247" label="UMA_API_GET_FOCUS">UIA FragmentRoot.GetFocus</int>
+  <int value="248" label="UMA_API_ADVISE_EVENT_ADDED">
+    UIA AdviseEvents.AdviseEventAdded
+  </int>
+  <int value="249" label="UMA_API_ADVISE_EVENT_REMOVED">
+    UIA AdviseEvents.AdviseEventRemoved
+  </int>
 </enum>
 
 <enum name="AccessibilityWinAPIGetPropertyValueEnum">

ui/accessibility/platform/ax_fragment_root_win.cc

@@ -43,6 +43,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
 
   IFACEMETHODIMP get_HostRawElementProvider(
       IRawElementProviderSimple** host_element_provider) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_HOST_RAW_ELEMENT_PROVIDER);
     UIA_VALIDATE_CALL_1_ARG(host_element_provider);
 
     HWND hwnd = GetDelegate()->GetTargetForNativeAccessibilityEvent();
@@ -51,6 +52,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
 
   IFACEMETHODIMP GetPropertyValue(PROPERTYID property_id,
                                   VARIANT* result) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PROPERTY_VALUE);
     UIA_VALIDATE_CALL_1_ARG(result);
 
     switch (property_id) {
@@ -84,6 +86,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
 
   IFACEMETHODIMP get_FragmentRoot(
       IRawElementProviderFragmentRoot** fragment_root) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_FRAGMENTROOT);
     UIA_VALIDATE_CALL_1_ARG(fragment_root);
 
     QueryInterface(IID_PPV_ARGS(fragment_root));
@@ -97,6 +100,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
       double screen_physical_pixel_x,
       double screen_physical_pixel_y,
       IRawElementProviderFragment** element_provider) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ELEMENT_PROVIDER_FROM_POINT);
     UIA_VALIDATE_CALL_1_ARG(element_provider);
 
     *element_provider = nullptr;
@@ -124,6 +128,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
   }
 
   IFACEMETHODIMP GetFocus(IRawElementProviderFragment** focus) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_FOCUS);
     UIA_VALIDATE_CALL_1_ARG(focus);
 
     *focus = nullptr;
@@ -157,6 +162,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
   //
   IFACEMETHODIMP AdviseEventAdded(EVENTID event_id,
                                   SAFEARRAY* property_ids) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ADVISE_EVENT_ADDED);
     if (event_id == UIA_LiveRegionChangedEventId) {
       live_region_change_listeners_++;
 
@@ -179,6 +185,7 @@ class AXFragmentRootPlatformNodeWin : public AXPlatformNodeWin,
 
   IFACEMETHODIMP AdviseEventRemoved(EVENTID event_id,
                                     SAFEARRAY* property_ids) override {
+    WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ADVISE_EVENT_REMOVED);
     if (event_id == UIA_LiveRegionChangedEventId) {
       DCHECK(live_region_change_listeners_ > 0);
       live_region_change_listeners_--;

ui/accessibility/platform/ax_platform_node_win.h

@@ -281,6 +281,10 @@ enum {
   UMA_API_WINDOW_GET_WINDOWVISUALSTATE = 243,
   UMA_API_WINDOW_GET_WINDOWINTERACTIONSTATE = 244,
   UMA_API_WINDOW_GET_ISTOPMOST = 245,
+  UMA_API_ELEMENT_PROVIDER_FROM_POINT = 246,
+  UMA_API_GET_FOCUS = 247,
+  UMA_API_ADVISE_EVENT_ADDED = 248,
+  UMA_API_ADVISE_EVENT_REMOVED = 249,
 
   // This must always be the last enum. It's okay for its value to
   // increase, but none of the other enum values may change.