Check temporary zoom status when sending zoom level in navigation.

content/browser/host_zoom_map_impl_browsertest.cc

+// Copyright 2015 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/host_zoom_map_impl.h"
+
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/test/content_browser_test.h"
+#include "content/shell/browser/shell.h"
+#include "url/gurl.h"
+
+namespace content {
+
+class HostZoomMapImplBrowserTest : public ContentBrowserTest {
+};
+
+void RunTestForURL(const GURL& url,
+                   Shell* shell,
+                   double host_zoom_level,
+                   double temp_zoom_level) {
+  shell->LoadURL(url);
+  WebContents* web_contents = shell->web_contents();
+
+  HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>(
+      HostZoomMap::GetForWebContents(web_contents));
+
+  int view_id = web_contents->GetRoutingID();
+  int render_process_id = web_contents->GetRenderProcessHost()->GetID();
+
+  // Assume caller has set the zoom level to |host_zoom_level| using
+  // either a host or host+scheme entry in the HostZoomMap prior to
+  // calling this function.
+  EXPECT_DOUBLE_EQ(host_zoom_level, host_zoom_map->GetZoomLevelForView(
+                                        url, render_process_id, view_id));
+
+  // Make sure that GetZoomLevelForView() works for temporary zoom levels.
+  host_zoom_map->SetTemporaryZoomLevel(render_process_id, view_id,
+                                       temp_zoom_level);
+  EXPECT_DOUBLE_EQ(temp_zoom_level, host_zoom_map->GetZoomLevelForView(
+                                        url, render_process_id, view_id));
+  // Clear the temporary zoom level in case subsequent test calls use the same
+  // web_contents.
+  host_zoom_map->ClearTemporaryZoomLevel(render_process_id, view_id);
+}
+
+// Test to make sure that GetZoomForView() works properly for zoom levels
+// stored by host value, and can distinguish temporary zoom levels from
+// these.
+IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest, GetZoomForView_Host) {
+  GURL url("http://abc.com");
+
+  HostZoomMap* host_zoom_map =
+      HostZoomMap::GetForWebContents(shell()->web_contents());
+
+  double default_zoom_level = host_zoom_map->GetDefaultZoomLevel();
+  double host_zoom_level = default_zoom_level + 1.0;
+  double temp_zoom_level = default_zoom_level + 2.0;
+
+  host_zoom_map->SetZoomLevelForHost(url.host(), host_zoom_level);
+
+  RunTestForURL(url, shell(), host_zoom_level, temp_zoom_level);
+}
+
+// Test to make sure that GetZoomForView() works properly for zoom levels
+// stored by host and scheme values, and can distinguish temporary zoom levels
+// from these.
+IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest,
+                       GetZoomForView_HostAndScheme) {
+  GURL url("http://abc.com");
+
+  HostZoomMap* host_zoom_map =
+      HostZoomMap::GetForWebContents(shell()->web_contents());
+
+  double default_zoom_level = host_zoom_map->GetDefaultZoomLevel();
+  double host_zoom_level = default_zoom_level + 1.0;
+  double temp_zoom_level = default_zoom_level + 2.0;
+
+  host_zoom_map->SetZoomLevelForHostAndScheme(url.scheme(), url.host(),
+                                              host_zoom_level);
+
+  RunTestForURL(url, shell(), host_zoom_level, temp_zoom_level);
+}
+
+}  // namespace content