Remove handle bar under the Omnibox.

Remove the handle bar that appears under the Omnibox when the thumb
strip feature is enabled.

Bug: 1094335
Change-Id: Ib07d307540412e22ee096eb0155583f3e51f7149
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485499
Auto-Submit: Roberto Moura <mouraroberto@google.com>
Reviewed-by: Robbie Gibson <rkgibson@google.com>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Roberto Moura <mouraroberto@google.com>
Cr-Commit-Position: refs/heads/master@{#821241}

ios/chrome/browser/ui/toolbar/primary_toolbar_view.mm

@@ -55,9 +55,6 @@
 // Separator below the toolbar, redefined as readwrite.
 @property(nonatomic, strong, readwrite) UIView* separator;
 
-// HandleBar attached to the bottom of the toolbar, redefined as readwrite.
-@property(nonatomic, strong, readwrite) UIView* handleBar;
-
 #pragma mark** Buttons in the leading stack view. **
 // Button to navigate back, redefined as readwrite.
 @property(nonatomic, strong, readwrite) ToolbarButton* backButton;
@@ -150,9 +147,6 @@
   [self setUpProgressBar];
   [self setUpCollapsedToolbarButton];
   [self setUpSeparator];
-  if (IsThumbStripEnabled()) {
-    [self setUpHandleBar];
-  }
 
   [self setUpConstraints];
 }
@@ -296,15 +290,6 @@
   [self addSubview:self.separator];
 }
 
-// Sets the handleBar up.
-- (void)setUpHandleBar {
-  self.handleBar = [[UIView alloc] init];
-  self.handleBar.backgroundColor = [UIColor colorNamed:kToolbarShadowColor];
-  self.handleBar.layer.cornerRadius = kHandleBarHeight / 2.0;
-  self.handleBar.translatesAutoresizingMaskIntoConstraints = NO;
-  [self addSubview:self.handleBar];
-}
-
 // Sets the constraints up.
 - (void)setUpConstraints {
   id<LayoutGuideProvider> safeArea = self.safeAreaLayoutGuide;
@@ -414,18 +399,6 @@
 
   // CollapsedToolbarButton constraints.
   AddSameConstraints(self, self.collapsedToolbarButton);
-
-  // HandleBar Constraints.
-  if (self.handleBar) {
-    [NSLayoutConstraint activateConstraints:@[
-      [self.handleBar.bottomAnchor
-          constraintEqualToAnchor:self.bottomAnchor
-                         constant:-kHandleBarBottomAnchorConstant],
-      [self.handleBar.centerXAnchor constraintEqualToAnchor:self.centerXAnchor],
-      [self.handleBar.heightAnchor constraintEqualToConstant:kHandleBarHeight],
-      [self.handleBar.widthAnchor constraintEqualToConstant:kHandleBarWidth],
-    ]];
-  }
 }
 
 #pragma mark - Property accessors

ios/chrome/browser/ui/toolbar/public/toolbar_constants.h

@@ -34,11 +34,6 @@ extern const CGFloat kProgressBarHeight;
 // Height of the separator. Should be aligned to upper pixel.
 extern const CGFloat kToolbarSeparatorHeight;
 
-// HandleBar width, height, and bottom anchor constant.
-extern const CGFloat kHandleBarWidth;
-extern const CGFloat kHandleBarHeight;
-extern const CGFloat kHandleBarBottomAnchorConstant;
-
 // Toolbar Buttons.
 extern const CGFloat kAdaptiveToolbarButtonHeight;
 extern const CGFloat kAdaptiveToolbarButtonWidth;

ios/chrome/browser/ui/toolbar/public/toolbar_constants.mm

@@ -23,10 +23,6 @@ const CGFloat kProgressBarHeight = 2.0f;
 
 const CGFloat kToolbarSeparatorHeight = 0.1f;
 
-const CGFloat kHandleBarWidth = 60.0f;
-const CGFloat kHandleBarHeight = 4.5f;
-const CGFloat kHandleBarBottomAnchorConstant = 2.7f;
-
 const CGFloat kAdaptiveToolbarButtonHeight = 44.0f;
 const CGFloat kAdaptiveToolbarButtonWidth = 44.0f;
 const CGFloat kSearchButtonWidth = 70.0f;