Add Vector2d classes that represent offsets, instead of using Point.

content/browser/renderer_host/render_widget_host_view_gtk.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 "content/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 net::URLRequestStatus::Status.
 #include "content/common/view_messages.h"
@@ skipping 740 matching lines @@
 gfx::NativeViewId RenderWidgetHostViewGtk::GetNativeViewId() const {
   return GtkNativeViewManager::GetInstance()->GetIdForWidget(view_.get());
 }
 
 gfx::NativeViewAccessible RenderWidgetHostViewGtk::GetNativeViewAccessible() {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 void RenderWidgetHostViewGtk::MovePluginWindows(
-    const gfx::Point& scroll_offset,
+    const gfx::Vector2d& scroll_offset,
     const std::vector<webkit::npapi::WebPluginGeometry>& moves) {
   for (size_t i = 0; i < moves.size(); ++i) {
     plugin_container_manager_.MovePluginContainer(moves[i]);
   }
 }
 
 void RenderWidgetHostViewGtk::Focus() {
   gtk_widget_grab_focus(view_.get());
 }
 
@@ skipping 262 matching lines @@
 
 // NOTE: |output| is initialized with the size of |src_subrect|, and |dst_size|
 // is ignored on GTK.
 void RenderWidgetHostViewGtk::CopyFromCompositingSurface(
     const gfx::Rect& src_subrect,
     const gfx::Size& /* dst_size */,
     const base::Callback<void(bool)>& callback,
     skia::PlatformBitmap* output) {
   base::ScopedClosureRunner scoped_callback_runner(base::Bind(callback, false));
 
-  const gfx::Rect bounds = GetViewBounds();
+  gfx::Rect src_subrect_in_view = src_subrect;
+  src_subrect_in_view.Offset(GetViewBounds().OffsetFromOrigin());
+
   ui::XScopedImage image(XGetImage(ui::GetXDisplay(), ui::GetX11RootWindow(),
-                                   bounds.x() + src_subrect.x(),
-                                   bounds.y() + src_subrect.y(),
-                                   src_subrect.width(),
-                                   src_subrect.height(),
+                                   src_subrect_in_view.x(),
+                                   src_subrect_in_view.y(),
+                                   src_subrect_in_view.width(),
+                                   src_subrect_in_view.height(),
                                    AllPlanes, ZPixmap));
   if (!image.get())
     return;
 
   if (!output->Allocate(src_subrect.width(), src_subrect.height(), true))
     return;
 
   const SkBitmap& bitmap = output->GetBitmap();
   const size_t bitmap_size = bitmap.getSize();
   DCHECK_EQ(bitmap_size,
@@ skipping 487 matching lines @@
             this));
   }
   BrowserAccessibilityGtk* root =
       browser_accessibility_manager_->GetRoot()->ToBrowserAccessibilityGtk();
 
   atk_object_set_role(root->GetAtkObject(), ATK_ROLE_HTML_CONTAINER);
   return root->GetAtkObject();
 }
 
 }  // namespace content