[Android] Expose native ViewConfiguration constants as DIPs

content/browser/renderer_host/input/synthetic_gesture_target_android.cc

Index: content/browser/renderer_host/input/synthetic_gesture_target_android.cc
diff --git a/content/browser/renderer_host/input/synthetic_gesture_target_android.cc b/content/browser/renderer_host/input/synthetic_gesture_target_android.cc
index 836da7db49eba745a8ca5621bae54bc6b1fb4236..501da40d75f10e0e212c7272e67d5acd42af32e0 100644
--- a/content/browser/renderer_host/input/synthetic_gesture_target_android.cc
+++ b/content/browser/renderer_host/input/synthetic_gesture_target_android.cc
@@ -107,16 +107,11 @@ SyntheticGestureTargetAndroid::GetDefaultSyntheticGestureSourceType() const {
 }
 
 float SyntheticGestureTargetAndroid::GetTouchSlopInDips() const {
-  float device_scale_factor =
-      gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
-  return gfx::ViewConfiguration::GetTouchSlopInPixels() / device_scale_factor;
+  return gfx::ViewConfiguration::GetTouchSlopInDips();
 }
 
 float SyntheticGestureTargetAndroid::GetMinScalingSpanInDips() const {
-  float device_scale_factor =
-      gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
-  return
-      gfx::ViewConfiguration::GetMinScalingSpanInPixels() / device_scale_factor;
+  return gfx::ViewConfiguration::GetMinScalingSpanInDips();
 }
 
 }  // namespace content