Align VK with left edge of screen when shelf is left positioned

ui/keyboard/keyboard_layout_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/keyboard/keyboard_layout_manager.h"
 
 #include "ui/compositor/layer_animator.h"
 #include "ui/keyboard/keyboard_controller.h"
 #include "ui/keyboard/keyboard_controller_proxy.h"
 #include "ui/keyboard/keyboard_util.h"
@@ skipping 31 matching lines @@
   // Request to change the bounds of child window (AKA the virtual keyboard
   // window) should change the container window first. Then the child window is
   // resized and covers the container window. Note the child's bound is only set
   // in OnWindowResized.
   gfx::Rect old_bounds = controller_->GetContainerWindow()->bounds();
   gfx::Rect new_bounds = requested_bounds;
   if (controller_->keyboard_mode() == FULL_WIDTH) {
     const gfx::Rect& window_bounds =
         controller_->GetContainerWindow()->GetRootWindow()->bounds();
     new_bounds.set_y(window_bounds.height() - new_bounds.height());
+    // If shelf is positioned on the left side of screen, x is not 0. In
+    // FULL_WIDTH mode, the virtual keyboard should always align with the left
+    // edge of the screen. So manually set x to 0 here.
+    new_bounds.set_x(0);
     new_bounds.set_width(window_bounds.width());
   }
   // Keyboard bounds should only be reset when it actually changes. Otherwise
   // it interrupts the initial animation of showing the keyboard. Described in
   // crbug.com/356753.
   if (new_bounds == old_bounds) {
     return;
   }
 
   ui::LayerAnimator* animator =
@@ skipping 17 matching lines @@
       // keyboard window is resized even if keyboard is hidden.
       if (controller_->keyboard_visible())
         controller_->NotifyKeyboardBoundsChanging(requested_bounds);
     }
   } else if (controller_->keyboard_mode() == FLOATING) {
     controller_->NotifyKeyboardBoundsChanging(gfx::Rect());
   }
 }
 
 }  // namespace keyboard