Provide max gesture bounds and option to ignore touch size during pinch

ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java

Index: ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java
diff --git a/ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java b/ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java
index e8fc5b996d8de8121e26e84733b1d0dbc7f53e1d..8f47717cd34c6310a20935d3c4ac57a531ed38ca 100644
--- a/ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java
+++ b/ui/android/java/src/org/chromium/ui/gfx/ViewConfigurationHelper.java
@@ -8,6 +8,7 @@ import android.content.ComponentCallbacks;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.os.Build;
 import android.util.TypedValue;
 import android.view.ViewConfiguration;
 
@@ -136,6 +137,14 @@ public class ViewConfigurationHelper {
     }
 
     @CalledByNative
+    private static boolean shouldUseTouchMajorInScalingSpan() {
+        // Android's ScaleGestureDetector started using touch major values in
+        // JBMR1. Many devices from versions prior report wildly inconsistent
+        // touch sizes, so disable touch major use in such scenarios.
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
+    }
+
+    @CalledByNative
     private static ViewConfigurationHelper createWithListener(Context context) {
         ViewConfigurationHelper viewConfigurationHelper = new ViewConfigurationHelper(context);
         viewConfigurationHelper.registerListener();