Remove code doing a no-op due to float -> int rounding.

chrome/browser/gtk/tabs/dragged_tab_gtk.cc

 // Copyright (c) 2009 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 "chrome/browser/gtk/tabs/dragged_tab_gtk.h"
 
 #include <gdk/gdk.h>
 
 #include <algorithm>
 
@@ skipping 245 matching lines @@
   if (!attached_)
     cairo_scale(cairo_context, kScalingFactor, kScalingFactor);
   gdk_cairo_set_source_pixbuf(cairo_context, pixbuf, 0, 0);
   cairo_paint(cairo_context);
 
   if (!attached_) {
     // Make the render area depiction opaque (leaving enough room for the
     // border).
     cairo_identity_matrix(cairo_context);
     cairo_set_source_rgba(cairo_context, 1.0f, 1.0f, 1.0f, 1.0f);
-    int tab_height = kScalingFactor * gdk_pixbuf_get_height(pixbuf) -
-                     kDragFrameBorderSize;
+    int tab_height = static_cast<int>(kScalingFactor *
+                                      gdk_pixbuf_get_height(pixbuf) -
+                                      kDragFrameBorderSize);
     cairo_rectangle(cairo_context,
                     0, tab_height,
                     size.width(), size.height() - tab_height);
     cairo_fill(cairo_context);
   }
 
   cairo_destroy(cairo_context);
 
   // Set the shape mask.
   gdk_window_shape_combine_mask(container_->window, pixmap, 0, 0);
@@ skipping 10 matching lines @@
                                       GdkEventExpose* event,
                                       DraggedTabGtk* dragged_tab) {
   GdkPixbuf* pixbuf = dragged_tab->PaintTab();
   if (gtk_util::IsScreenComposited()) {
     dragged_tab->SetContainerTransparency();
   } else {
     dragged_tab->SetContainerShapeMask(pixbuf);
   }
 
   // Only used when not attached.
-  int tab_height = kScalingFactor * gdk_pixbuf_get_height(pixbuf);
-  int tab_width = kScalingFactor * gdk_pixbuf_get_width(pixbuf);
+  int tab_height = static_cast<int>(kScalingFactor *
+                                    gdk_pixbuf_get_height(pixbuf));
+  int tab_width = static_cast<int>(kScalingFactor *
+                                   gdk_pixbuf_get_width(pixbuf));
 
   // Draw the render area.
   if (dragged_tab->backing_store_ && !dragged_tab->attached_) {
     // This leaves room for the border.
     dragged_tab->backing_store_->PaintToRect(
         gfx::Rect(kDragFrameBorderSize, tab_height,
                   widget->allocation.width - kTwiceDragFrameBorderSize,
                   widget->allocation.height - tab_height -
                   kDragFrameBorderSize),
         GDK_DRAWABLE(widget->window));
@@ skipping 31 matching lines @@
   gdk_cairo_set_source_pixbuf(cr, pixbuf, 0, 0);
   cairo_paint(cr);
 
   cairo_destroy(cr);
 
   g_object_unref(pixbuf);
 
   // We've already drawn the tab, so don't propagate the expose-event signal.
   return TRUE;
 }