Zoom level limits must be set before setting a zoom level.

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 <string>
 #include <vector>
@@ skipping 1398 matching lines @@
   if (!item.isNull()) {
     params.content_state = webkit_glue::HistoryItemToString(item);
   } else {
     params.content_state =
         webkit_glue::CreateHistoryStateForURL(GURL(request.url()));
   }
 
   if (!frame->parent()) {
     // Top-level navigation.
 
+    // Reset the zoom limits in case a plugin had changed them previously. This
+    // will also call us back which will cause us to send a message to
+    // update WebContentsImpl.
+    webview()->zoomLimitsChanged(
+        WebView::zoomFactorToZoomLevel(content::kMinimumZoomFactor),
+        WebView::zoomFactorToZoomLevel(content::kMaximumZoomFactor));
+
     // Set zoom level, but don't do it for full-page plugin since they don't use
     // the same zoom settings.
     HostZoomLevels::iterator host_zoom =
         host_zoom_levels_.find(GURL(request.url()));
     if (webview()->mainFrame()->document().isPluginDocument()) {
       // Reset the zoom levels for plugins.
       webview()->setZoomLevel(false, 0);
     } else {
       if (host_zoom != host_zoom_levels_.end())
         webview()->setZoomLevel(false, host_zoom->second);
     }
 
     if (host_zoom != host_zoom_levels_.end()) {
       // This zoom level was merely recorded transiently for this load.  We can
       // erase it now.  If at some point we reload this page, the browser will
       // send us a new, up-to-date zoom level.
       host_zoom_levels_.erase(host_zoom);
     }
 
-    // Reset the zoom limits in case a plugin had changed them previously. This
-    // will also call us back which will cause us to send a message to
-    // update WebContentsImpl.
-    webview()->zoomLimitsChanged(
-        WebView::zoomFactorToZoomLevel(content::kMinimumZoomFactor),
-        WebView::zoomFactorToZoomLevel(content::kMaximumZoomFactor));
-
     // Update contents MIME type for main frame.
     params.contents_mime_type = ds->response().mimeType().utf8();
 
     params.transition = navigation_state->transition_type();
     if (!content::PageTransitionIsMainFrame(params.transition)) {
       // If the main frame does a load, it should not be reported as a subframe
       // navigation.  This can occur in the following case:
       // 1. You're on a site with frames.
       // 2. You do a subframe navigation.  This is stored with transition type
       //    MANUAL_SUBFRAME.
@@ skipping 4312 matching lines @@
 bool RenderViewImpl::WebWidgetHandlesCompositorScheduling() const {
   return !!RenderThreadImpl::current()->compositor_thread();
 }
 
 void RenderViewImpl::OnJavaBridgeInit() {
   DCHECK(!java_bridge_dispatcher_);
 #if defined(ENABLE_JAVA_BRIDGE)
   java_bridge_dispatcher_ = new JavaBridgeDispatcher(this);
 #endif
 }