Fix accessibility issues in custom tab UI

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java

Index: chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
index d8b9541f3db316e038f9eddfc50ad7689bdf3f2d..cf5238bac3a84a932df49c5087fbbd0521430d47 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.java
@@ -12,11 +12,13 @@ import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.SystemClock;
 import android.util.AttributeSet;
+import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 import android.widget.ProgressBar;
+import android.widget.Toast;
 
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.Tab;
@@ -222,6 +224,31 @@ abstract class ToolbarLayout extends FrameLayout implements Toolbar {
     }
 
     /**
+     * Shows the content description toast for items on the toolbar, usually after long clicking.

[Yusuf, 2015/06/29 18:03:17]

Lets get rid of mentions about long press since this is not restricted to that
functionally. So just ... on the toolbar.
and rename to showAccessibilityToast

[Ian Wen, 2015/06/29 18:27:42]

Done.

+     * @param view The view to anchor the toast.
+     * @param stringResId The resource id for the string in the toast.
+     * @return Whether a toast has been shown successfully.
+     */
+    protected boolean showLongPressToast(View view, int stringResId) {
+        if (stringResId != 0) {

[Yusuf, 2015/06/29 18:03:17]

if stringRestId==0 return false;

Then get rid of the indentation below.

[Ian Wen, 2015/06/29 18:27:42]

Done.

+            final int screenWidth = getResources().getDisplayMetrics().widthPixels;
+            final int[] screenPos = new int[2];
+            view.getLocationOnScreen(screenPos);
+            final int width = view.getWidth();
+
+            Toast toast = Toast.makeText(
+                    getContext(), getResources().getString(stringResId), Toast.LENGTH_SHORT);
+            toast.setGravity(
+                    Gravity.TOP | Gravity.END,
+                    screenWidth - screenPos[0] - width / 2,
+                    getHeight());
+            toast.show();
+            return true;
+        }
+        return false;
+    }
+
+    /**
      * @return The provider for toolbar related data.
      */
     protected ToolbarDataProvider getToolbarDataProvider() {