[Linux] Fix issue 30995: window resizes vertically when scrolling in a long p...

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2006-2008 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/renderer_host/render_widget_host_view_gtk.h"
 
 // If this gets included after the gtk headers, then a bunch of compiler
 // errors happen because of a "#define Status int" in Xlib.h, which interacts
 // badly with URLRequestStatus::Status.
 #include "chrome/common/render_messages.h"
@@ skipping 36 matching lines @@
     GtkWidget* widget = gtk_fixed_new();
     gtk_widget_set_name(widget, "chrome-render-widget-host-view");
     gtk_fixed_set_has_window(GTK_FIXED(widget), TRUE);
     gtk_widget_set_double_buffered(widget, FALSE);
     gtk_widget_set_redraw_on_allocate(widget, FALSE);
 #if defined(NDEBUG)
     gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &gfx::kGdkWhite);
 #else
     gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &gfx::kGdkGreen);
 #endif
+    // Allow the browser window to be resized freely.
+    gtk_widget_set_size_request(widget, 0, 0);
 
     gtk_widget_add_events(widget, GDK_EXPOSURE_MASK |
                                   GDK_POINTER_MOTION_MASK |
                                   GDK_BUTTON_PRESS_MASK |
                                   GDK_BUTTON_RELEASE_MASK |
                                   GDK_KEY_PRESS_MASK |
                                   GDK_KEY_RELEASE_MASK |
                                   GDK_FOCUS_CHANGE_MASK |
                                   GDK_ENTER_NOTIFY_MASK |
                                   GDK_LEAVE_NOTIFY_MASK);
@@ skipping 626 matching lines @@
     const NativeWebKeyboardEvent& event) {
   if (!host_)
     return;
 
   EditCommands edit_commands;
   if (key_bindings_handler_->Match(event, &edit_commands)) {
     host_->ForwardEditCommandsForNextKeyEvent(edit_commands);
   }
   host_->ForwardKeyboardEvent(event);
 }