Switch gfx::Range to use uint32_t instead of size_t.

ui/views/touchui/touch_selection_controller_impl_unittest.cc

 // Copyright (c) 2012 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 <stddef.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/client/screen_position_client.h"
@@ skipping 535 matching lines @@
     textfield_text += textfield_text;
   textfield_->SetText(ASCIIToUTF16(textfield_text));
 
   // Tap the textfield to invoke selection.
   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
   details.set_tap_count(1);
   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
   textfield_->OnGestureEvent(&tap);
 
   // Select some text such that one handle is hidden.
-  textfield_->SelectRange(gfx::Range(10, textfield_text.length()));
+  textfield_->SelectRange(
+      gfx::Range(10u, static_cast<uint32_t>(textfield_text.length())));
 
   // Check that one selection handle is hidden.
   EXPECT_FALSE(IsSelectionHandle1Visible());
   EXPECT_TRUE(IsSelectionHandle2Visible());
-  EXPECT_EQ(gfx::Range(10, textfield_text.length()),
-            textfield_->GetSelectedRange());
+  EXPECT_EQ(
+      gfx::Range(10u, static_cast<uint32_t>(textfield_text.length())),
+      textfield_->GetSelectedRange());
 
   // Drag the visible handle around and make sure the selection end point of the
   // invisible handle does not change.
   size_t visible_handle_position = textfield_->GetSelectedRange().end();
   for (int i = 0; i < 10; ++i) {
     static const int drag_diff = -10;
     SimulateSelectionHandleDrag(gfx::Vector2d(drag_diff, 0), 2);
     // Make sure that the visible handle is being dragged.
     EXPECT_NE(visible_handle_position, textfield_->GetSelectedRange().end());
     visible_handle_position = textfield_->GetSelectedRange().end();
@@ skipping 262 matching lines @@
   // Start touch editing; then press a key and ensure it deactivates touch
   // selection.
   StartTouchEditing();
   EXPECT_TRUE(GetSelectionController());
   generator.PressKey(ui::VKEY_A, 0);
   RunPendingMessages();
   EXPECT_FALSE(GetSelectionController());
 }
 
 }  // namespace views