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

content/renderer/render_view_browsertest.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 "base/basictypes.h"
 
 #include "base/shared_memory.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "content/common/intents_messages.h"
@@ skipping 1680 matching lines @@
   ASSERT_EQ(utf16_length, bounds.size());
   for (size_t i = 0; i < utf16_length; ++i) {
     if (is_surrogate_pair_empty_rect[i]) {
       EXPECT_EQ(0, bounds[i].width());
     } else {
       EXPECT_LT(0, bounds[i].width());
     }
   }
   view()->OnImeConfirmComposition(empty_string, ui::Range::InvalidRange());
 }
+
+TEST_F(RenderViewImplTest, ZoomLimit) {
+  const double kMinZoomLevel =
+      WebKit::WebView::zoomFactorToZoomLevel(content::kMinimumZoomFactor);
+  const double kMaxZoomLevel =
+      WebKit::WebView::zoomFactorToZoomLevel(content::kMaximumZoomFactor);
+
+  ViewMsg_Navigate_Params params;
+  params.page_id = -1;
+  params.navigation_type = ViewMsg_Navigate_Type::NORMAL;
+
+  // Verifies navigation to a URL with preset zoom level indeed sets the level.
+  // Regression test for http://crbug.com/139559, where the level was not
+  // properly set when it is out of the default zoom limits of WebView.
+  params.url = GURL("data:text/html,min_zoomlimit_test");
+  view()->OnSetZoomLevelForLoadingURL(params.url, kMinZoomLevel);
+  view()->OnNavigate(params);
+  ProcessPendingMessages();
+  EXPECT_DOUBLE_EQ(kMinZoomLevel, view()->GetWebView()->zoomLevel());
+
+  // It should work even when the zoom limit is temporarily changed in the page.
+  view()->GetWebView()->zoomLimitsChanged(
+      WebKit::WebView::zoomFactorToZoomLevel(1.0),
+      WebKit::WebView::zoomFactorToZoomLevel(1.0));
+  params.url = GURL("data:text/html,max_zoomlimit_test");
+  view()->OnSetZoomLevelForLoadingURL(params.url, kMaxZoomLevel);
+  view()->OnNavigate(params);
+  ProcessPendingMessages();
+  EXPECT_DOUBLE_EQ(kMaxZoomLevel, view()->GetWebView()->zoomLevel());
+}