[DevTools] Handle frontend zoom similarly to tab zoom.

chrome/browser/ui/browser_commands.cc

 // Copyright 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 "chrome/browser/ui/browser_commands.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 50 matching lines @@
 #include "chrome/common/content_restriction.h"
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/pref_names.h"
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/browser/render_view_host.h"
+#include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/common/url_utils.h"
 #include "net/base/escape.h"
 #include "webkit/common/user_agent/user_agent_util.h"
 
 #if defined(OS_WIN)
@@ skipping 803 matching lines @@
     // Incognito window it's the newest value of the find pboard content and
     // user-typed text.
     FindBar* find_bar = browser->GetFindBarController()->find_bar();
     find_text = find_bar->GetFindText();
 #endif
     find_helper->StartFinding(find_text, forward_direction, false);
   }
 }
 
 void Zoom(Browser* browser, content::PageZoom zoom) {
-  if (browser->is_devtools())
+  DevToolsWindow* devtools = DevToolsWindow::GetDockedInstanceForInspectedTab(
+      browser->tab_strip_model()->GetActiveWebContents());

[vsevik, 2014/02/12 15:13:43]

nit: You could extract browser->tab_strip_model()->GetActiveWebContents()

[dgozman, 2014/02/12 16:27:16]

Done.

+  if (devtools && devtools->web_contents()->GetRenderWidgetHostView() &&
+      devtools->web_contents()->GetRenderWidgetHostView()->HasFocus()) {
+    chrome_page_zoom::Zoom(devtools->web_contents(), zoom);
     return;
+  }
 
   chrome_page_zoom::Zoom(browser->tab_strip_model()->GetActiveWebContents(),
                          zoom);
 }
 
 void FocusToolbar(Browser* browser) {
   content::RecordAction(UserMetricsAction("FocusToolbar"));
   browser->window()->FocusToolbar();
 }
 
@@ skipping 277 matching lines @@
           Browser::TYPE_POPUP, app_name, gfx::Rect(), browser->profile(),
           browser->host_desktop_type()));
   app_browser->tab_strip_model()->AppendWebContents(contents, true);
 
   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
   contents->GetRenderViewHost()->SyncRendererPrefs();
   app_browser->window()->Show();
 }
 
 }  // namespace chrome