[content shell] implement auto resize related WebTestDelegate interfaces

content/renderer/render_view_impl.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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 5277 matching lines @@
   webview()->enableAutoResizeMode(min_size, max_size);
 }
 
 void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
   if (!webview())
     return;
   auto_resize_mode_ = false;
   webview()->disableAutoResizeMode();
 
-  Resize(new_size, physical_backing_size_, overdraw_bottom_height_,
-         resizer_rect_, is_fullscreen_, NO_RESIZE_ACK);
+  if (!new_size.IsEmpty()) {
+    Resize(new_size,
+           physical_backing_size_,
+           overdraw_bottom_height_,
+           resizer_rect_,
+           is_fullscreen_,
+           NO_RESIZE_ACK);
+  }
 }
 
 void RenderViewImpl::OnEnablePreferredSizeChangedMode() {
   if (send_preferred_size_changes_)
     return;
   send_preferred_size_changes_ = true;
 
   // Start off with an initial preferred size notification (in case
   // |didUpdateLayout| was already called).
   didUpdateLayout();
@@ skipping 1194 matching lines @@
     OnSetActive(false);
   }
 }
 
 void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
   SetDeviceScaleFactor(factor);
   if (!auto_resize_mode_)
     AutoResizeCompositor();
 }
 
+void RenderViewImpl::EnableAutoResizeForTesting(const gfx::Size& min_size,
+                                                const gfx::Size& max_size) {
+  OnEnableAutoResize(min_size, max_size);
+}
+
+void RenderViewImpl::DisableAutoResizeForTesting(const gfx::Size& new_size) {
+  OnDisableAutoResize(new_size);
+}
+
 void RenderViewImpl::OnReleaseDisambiguationPopupDIB(
     TransportDIB::Handle dib_handle) {
   TransportDIB* dib = TransportDIB::CreateWithHandle(dib_handle);
   RenderProcess::current()->ReleaseTransportDIB(dib);
 }
 
 void RenderViewImpl::DidCommitCompositorFrame() {
   RenderWidget::DidCommitCompositorFrame();
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
 }
@@ skipping 16 matching lines @@
     WebURL url = icon_urls[i].iconURL();
     if (!url.isEmpty())
       urls.push_back(FaviconURL(url,
                                 ToFaviconType(icon_urls[i].iconType())));
   }
   SendUpdateFaviconURL(urls);
 }
 
 
 }  // namespace content