[NavigationBar] Pixel-align title (#2043)

* [NavigationBar] Pixel-align title

On 3x devices, centering the Title label was not aligning the origin to
pixels, resulting in blurry text.

Closes #2039

* Removing scale check - a separate PR will make it safer

components/NavigationBar/src/MDCNavigationBar.m

@@ -317,8 +317,9 @@ - (void)layoutSubviews {
   CGRect alignedFrame = [self mdc_frameAlignedVertically:titleFrame
                                             withinBounds:textFrame
                                                alignment:titleVerticalAlignment];
-  _titleLabel.frame =
-      [self mdc_frameAlignedHorizontally:alignedFrame alignment:self.titleAlignment];
+  alignedFrame = [self mdc_frameAlignedHorizontally:alignedFrame alignment:self.titleAlignment];
+
+  _titleLabel.frame = MDCRectAlignToScale(alignedFrame, self.window.screen.scale);
   self.titleView.frame = textFrame;
 
   // Button and title label alignment