Support KitKat accessibility APIs.

content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java

Index: content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java b/content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java
index 2cf58bec1d3c4470b7b2313014ce3f976bd043fe..ff02f1d647b02da38cdc615c34007d6a25937de5 100644
--- a/content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java
+++ b/content/public/android/java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java
@@ -61,7 +61,10 @@ public class BrowserAccessibilityManager {
     @CalledByNative
     private static BrowserAccessibilityManager create(long nativeBrowserAccessibilityManagerAndroid,
             ContentViewCore contentViewCore) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            return new KitKatBrowserAccessibilityManager(
+                    nativeBrowserAccessibilityManagerAndroid, contentViewCore);
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
             return new JellyBeanBrowserAccessibilityManager(
                     nativeBrowserAccessibilityManagerAndroid, contentViewCore);
         } else {
@@ -240,6 +243,15 @@ public class BrowserAccessibilityManager {
         mContentViewCore.getContainerView().requestSendAccessibilityEvent(mView, event);
     }
 
+    private Bundle getOrCreateBundleForAccessibilityEvent(AccessibilityEvent event) {
+        Bundle bundle = (Bundle) event.getParcelableData();
+        if (bundle == null) {
+            bundle = new Bundle();
+            event.setParcelableData(bundle);
+        }
+        return bundle;
+    }
+
     @CalledByNative
     private void handlePageLoaded(int id) {
         if (mUserHasTouchExplored) return;
@@ -395,6 +407,35 @@ public class BrowserAccessibilityManager {
     }
 
     @CalledByNative
+    protected void setAccessibilityNodeInfoKitKatAttributes(AccessibilityNodeInfo node,
+            boolean canOpenPopup,
+            boolean contentInvalid,
+            boolean dismissable,
+            boolean multiLine,
+            int inputType,
+            int liveRegion) {
+        // Requires KitKat or higher.
+    }
+
+    @CalledByNative
+    protected void setAccessibilityNodeInfoCollectionInfo(AccessibilityNodeInfo node,
+            int rowCount, int columnCount, boolean hierarchical) {
+        // Requires KitKat or higher.
+    }
+
+    @CalledByNative
+    protected void setAccessibilityNodeInfoCollectionItemInfo(AccessibilityNodeInfo node,
+            int rowIndex, int rowSpan, int columnIndex, int columnSpan, boolean heading) {
+        // Requires KitKat or higher.
+    }
+
+    @CalledByNative
+    protected void setAccessibilityNodeInfoRangeInfo(AccessibilityNodeInfo node,
+            int rangeType, float min, float max, float current) {
+        // Requires KitKat or higher.
+    }
+
+    @CalledByNative
     private void setAccessibilityEventBooleanAttributes(AccessibilityEvent event,
             boolean checked, boolean enabled, boolean password, boolean scrollable) {
         event.setChecked(checked);
@@ -443,6 +484,57 @@ public class BrowserAccessibilityManager {
         event.getText().add(text);
     }
 
+    @CalledByNative
+    protected void setAccessibilityEventKitKatAttributes(AccessibilityEvent event,
+            boolean canOpenPopup,
+            boolean contentInvalid,
+            boolean dismissable,
+            boolean multiLine,
+            int inputType,
+            int liveRegion) {
+        // Backwards compatibility for KitKat AccessibilityNodeInfo fields.
+        Bundle bundle = getOrCreateBundleForAccessibilityEvent(event);
+        bundle.putBoolean("AccessibilityNodeInfo.canOpenPopup", canOpenPopup);
+        bundle.putBoolean("AccessibilityNodeInfo.contentInvalid", contentInvalid);
+        bundle.putBoolean("AccessibilityNodeInfo.dismissable", dismissable);
+        bundle.putBoolean("AccessibilityNodeInfo.multiLine", multiLine);
+        bundle.putInt("AccessibilityNodeInfo.inputType", inputType);
+        bundle.putInt("AccessibilityNodeInfo.liveRegion", liveRegion);
+    }
+
+    @CalledByNative
+    protected void setAccessibilityEventCollectionInfo(AccessibilityEvent event,
+            int rowCount, int columnCount, boolean hierarchical) {
+        // Backwards compatibility for KitKat AccessibilityNodeInfo fields.
+        Bundle bundle = getOrCreateBundleForAccessibilityEvent(event);
+        bundle.putInt("AccessibilityNodeInfo.CollectionInfo.rowCount", rowCount);
+        bundle.putInt("AccessibilityNodeInfo.CollectionInfo.columnCount", columnCount);
+        bundle.putBoolean("AccessibilityNodeInfo.CollectionInfo.hierarchical", hierarchical);
+    }
+
+    @CalledByNative
+    protected void setAccessibilityEventCollectionItemInfo(AccessibilityEvent event,
+            int rowIndex, int rowSpan, int columnIndex, int columnSpan, boolean heading) {
+        // Backwards compatibility for KitKat AccessibilityNodeInfo fields.
+        Bundle bundle = getOrCreateBundleForAccessibilityEvent(event);
+        bundle.putInt("AccessibilityNodeInfo.CollectionItemInfo.rowIndex", rowIndex);
+        bundle.putInt("AccessibilityNodeInfo.CollectionItemInfo.rowSpan", rowSpan);
+        bundle.putInt("AccessibilityNodeInfo.CollectionItemInfo.columnIndex", columnIndex);
+        bundle.putInt("AccessibilityNodeInfo.CollectionItemInfo.columnSpan", columnSpan);
+        bundle.putBoolean("AccessibilityNodeInfo.CollectionItemInfo.heading", heading);
+    }
+
+    @CalledByNative
+    protected void setAccessibilityEventRangeInfo(AccessibilityEvent event,
+            int rangeType, float min, float max, float current) {
+        // Backwards compatibility for KitKat AccessibilityNodeInfo fields.
+        Bundle bundle = getOrCreateBundleForAccessibilityEvent(event);
+        bundle.putInt("AccessibilityNodeInfo.RangeInfo.type", rangeType);
+        bundle.putFloat("AccessibilityNodeInfo.RangeInfo.min", min);
+        bundle.putFloat("AccessibilityNodeInfo.RangeInfo.max", max);
+        bundle.putFloat("AccessibilityNodeInfo.RangeInfo.current", current);
+    }
+
     private native int nativeGetRootId(long nativeBrowserAccessibilityManagerAndroid);
     private native int nativeHitTest(long nativeBrowserAccessibilityManagerAndroid, int x, int y);
     private native boolean nativePopulateAccessibilityNodeInfo(