Add some missing hotkeys....

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"
 
 #include <gtk/gtk.h>
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
@@ skipping 54 matching lines @@
     g_signal_connect(widget, "focus-out-event",
                      G_CALLBACK(OnFocusOut), host_view);
     g_signal_connect(widget, "grab-notify",
                      G_CALLBACK(OnGrabNotify), host_view);
     g_signal_connect(widget, "button-press-event",
                      G_CALLBACK(ButtonPressReleaseEvent), host_view);
     g_signal_connect(widget, "button-release-event",
                      G_CALLBACK(ButtonPressReleaseEvent), host_view);
     g_signal_connect(widget, "motion-notify-event",
                      G_CALLBACK(MouseMoveEvent), host_view);
-    g_signal_connect(widget, "scroll-event",
-                     G_CALLBACK(MouseScrollEvent), host_view);
+    // Connect after so that we are called after the handler installed by the
+    // TabContentsView which handles zoom events.
+    g_signal_connect_after(widget, "scroll-event",
+                           G_CALLBACK(MouseScrollEvent), host_view);
 
     // Create a GtkIMContext instance and attach its signal handlers.
     host_view->im_context_ = gtk_im_multicontext_new();
     g_signal_connect(host_view->im_context_, "preedit_start",
                      G_CALLBACK(InputMethodPreeditStart), host_view);
     g_signal_connect(host_view->im_context_, "preedit_end",
                      G_CALLBACK(InputMethodPreeditEnd), host_view);
     g_signal_connect(host_view->im_context_, "preedit_changed",
                      G_CALLBACK(InputMethodPreeditChanged), host_view);
     g_signal_connect(host_view->im_context_, "commit",
@@ skipping 197 matching lines @@
       event->x = x;
       event->y = y;
     }
     host_view->GetRenderWidgetHost()->ForwardMouseEvent(
         WebInputEventFactory::mouseEvent(event));
     return FALSE;
   }
 
   static gboolean MouseScrollEvent(GtkWidget* widget, GdkEventScroll* event,
                                    RenderWidgetHostViewGtk* host_view) {
+    // If the user is holding shift, translate it into a horizontal scroll. We
+    // don't care what other modifiers the user may be holding (zooming is
+    // handled at the TabContentsView level).
+    if (event->state & GDK_SHIFT_MASK) {
+      if (event->direction == GDK_SCROLL_UP)
+        event->direction = GDK_SCROLL_LEFT;
+      else if (event->direction == GDK_SCROLL_DOWN)
+        event->direction = GDK_SCROLL_RIGHT;
+    }
+
     host_view->GetRenderWidgetHost()->ForwardWheelEvent(
         WebInputEventFactory::mouseWheelEvent(event));
     return FALSE;
   }
 
   static void InputMethodCommit(GtkIMContext* im_context,
                                 gchar* text,
                                 RenderWidgetHostViewGtk* host_view) {
     std::wstring im_text = UTF8ToWide(text);
     if (!host_view->im_is_composing_cjk_text_ && im_text.length() == 1) {
@@ skipping 443 matching lines @@
   }
 }
 
 void RenderWidgetHostViewGtk::PluginProcessCrashed(base::ProcessId pid) {
   for (PluginPidMap::iterator i = plugin_pid_map_.find(pid);
        i != plugin_pid_map_.end() && i->first == pid; ++i) {
     plugin_container_manager_.DestroyPluginContainer(i->second);
   }
   plugin_pid_map_.erase(pid);
 }