Expand Chrome OS ARC support to create one tree source per package

components/arc/common/accessibility_helper.mojom

Index: components/arc/common/accessibility_helper.mojom
diff --git a/components/arc/common/accessibility_helper.mojom b/components/arc/common/accessibility_helper.mojom
index d80b7355993d7e2e21eef62df5b15d09fd3ff340..508d86505f48cd6380662fe640ef50198125b845 100644
--- a/components/arc/common/accessibility_helper.mojom
+++ b/components/arc/common/accessibility_helper.mojom
@@ -156,7 +156,10 @@ enum AccessibilityFilterType {
   FOCUS,
 
   // Send a complete tree from the event source's root for every event.
-  ALL
+  ALL,
+
+  // Send complete subtrees for root nodes with whitelisted package names.
+  WHITELISTED_PACKAGE_NAME

[yawano, 2017/04/21 04:26:36]

small nit: WHITELISTED_PACKAGE_NAMES?

[David Tseng, 2017/04/25 18:29:48]

I thought about that but the others are singular.

 };
 
 // AccessibilityEventData is a struct to contain info of
@@ -168,7 +171,7 @@ struct AccessibilityEventData {
   array<AccessibilityNodeInfoData> nodeData;
 };
 
-// Next method ID: 2
+// Next method ID: 3
 interface AccessibilityHelperHost {
   OnAccessibilityEventDeprecated@0(AccessibilityEventType eventType,
                                    AccessibilityNodeInfoData? eventSource);
@@ -176,6 +179,10 @@ interface AccessibilityHelperHost {
   // OnAccessibilityEvent is called when a converted Android accessibility event
   // is sent from Android.
   OnAccessibilityEvent@1(AccessibilityEventData eventData);
+
+  // onAccessibilityTreeDestroyed gets called when the Android accessibility
+  // tree becomes invalid.
+  OnAccessibilityTreeDestroyed@2();

[Luis Héctor Chávez, 2017/04/21 15:20:07]

[MinVersion=2] OnAccessibilityTreeDestroyed@2();

[David Tseng, 2017/04/25 18:29:48]

Acknowledged.

 };
 
 // Next method ID: 3