Create Content API around HostZoomMap.

content/browser/host_zoom_map_impl.cc

 // Copyright (c) 2011 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 <cmath>
 
-#include "content/browser/host_zoom_map.h"
+#include "content/browser/host_zoom_map_impl.h"
 
 #include "base/string_piece.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/common/page_zoom.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 using WebKit::WebView;
 using content::BrowserThread;
 using content::RenderProcessHost;
 
-HostZoomMap::HostZoomMap()
+namespace content {
+
+HostZoomMap* HostZoomMap::Create() {
+  return new HostZoomMapImpl();
+}
+
+}  // namespace content
+
+HostZoomMapImpl::HostZoomMapImpl()
     : default_zoom_level_(0.0) {
   registrar_.Add(
       this, content::NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW,
       content::NotificationService::AllSources());
 }
 
-void HostZoomMap::CopyFrom(HostZoomMap* copy) {
+void HostZoomMapImpl::CopyFrom(HostZoomMap* copy_interface) {
   // This can only be called on the UI thread to avoid deadlocks, otherwise
   //   UI: a.CopyFrom(b);
   //   IO: b.CopyFrom(a);
   // can deadlock.
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  HostZoomMapImpl* copy = static_cast<HostZoomMapImpl*>(copy_interface);
   base::AutoLock auto_lock(lock_);
   base::AutoLock copy_auto_lock(copy->lock_);
   for (HostZoomLevels::const_iterator i(copy->host_zoom_levels_.begin());
        i != copy->host_zoom_levels_.end(); ++i) {
     host_zoom_levels_[i->first] = i->second;
   }
 }
 
-double HostZoomMap::GetZoomLevel(const std::string& host) const {
+double HostZoomMapImpl::GetZoomLevel(const std::string& host) const {
   base::AutoLock auto_lock(lock_);
   HostZoomLevels::const_iterator i(host_zoom_levels_.find(host));
   return (i == host_zoom_levels_.end()) ? default_zoom_level_ : i->second;
 }
 
-void HostZoomMap::SetZoomLevel(std::string host, double level) {
+void HostZoomMapImpl::SetZoomLevel(std::string host, double level) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   {
     base::AutoLock auto_lock(lock_);
 
     if (content::ZoomValuesEqual(level, default_zoom_level_))
       host_zoom_levels_.erase(host);
     else
       host_zoom_levels_[host] = level;
   }
 
   // Notify renderers from this browser context.
   for (RenderProcessHost::iterator i(RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance()) {
     RenderProcessHost* render_process_host = i.GetCurrentValue();
     if (render_process_host->GetBrowserContext()->GetHostZoomMap() == this) {
       render_process_host->Send(
           new ViewMsg_SetZoomLevelForCurrentURL(host, level));
     }
   }
 
   content::NotificationService::current()->Notify(
       content::NOTIFICATION_ZOOM_LEVEL_CHANGED,
       content::Source<HostZoomMap>(this),
       content::Details<const std::string>(&host));
 }
 
-double HostZoomMap::GetTemporaryZoomLevel(int render_process_id,
-                                          int render_view_id) const {
+double HostZoomMapImpl::GetDefaultZoomLevel() const {
+  return default_zoom_level_;
+}
+
+void HostZoomMapImpl::SetDefaultZoomLevel(double level) {
+  default_zoom_level_ = level;
+}
+
+double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id,
+                                              int render_view_id) const {
   base::AutoLock auto_lock(lock_);
   for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) {
     if (temporary_zoom_levels_[i].render_process_id == render_process_id &&
         temporary_zoom_levels_[i].render_view_id == render_view_id) {
       return temporary_zoom_levels_[i].zoom_level;
     }
   }
   return 0;
 }
 
-void HostZoomMap::SetTemporaryZoomLevel(int render_process_id,
-                                        int render_view_id,
-                                        double level) {
+void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id,
+                                            int render_view_id,
+                                            double level) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   {
     base::AutoLock auto_lock(lock_);
     size_t i;
     for (i = 0; i < temporary_zoom_levels_.size(); ++i) {
       if (temporary_zoom_levels_[i].render_process_id == render_process_id &&
           temporary_zoom_levels_[i].render_view_id == render_view_id) {
         if (level) {
           temporary_zoom_levels_[i].zoom_level = level;
@@ skipping 13 matching lines @@
     }
   }
 
   std::string host;
   content::NotificationService::current()->Notify(
       content::NOTIFICATION_ZOOM_LEVEL_CHANGED,
       content::Source<HostZoomMap>(this),
       content::Details<const std::string>(&host));
 }
 
-void HostZoomMap::Observe(
+void HostZoomMapImpl::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   switch (type) {
     case content::NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW: {
       base::AutoLock auto_lock(lock_);
       int render_view_id =
           content::Source<RenderViewHost>(source)->routing_id();
       int render_process_id =
           content::Source<RenderViewHost>(source)->process()->GetID();
 
       for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) {
         if (temporary_zoom_levels_[i].render_process_id == render_process_id &&
             temporary_zoom_levels_[i].render_view_id == render_view_id) {
           temporary_zoom_levels_.erase(temporary_zoom_levels_.begin() + i);
           break;
         }
       }
       break;
     }
     default:
       NOTREACHED() << "Unexpected preference observed.";
   }
 }
 
-HostZoomMap::~HostZoomMap() {
+HostZoomMapImpl::~HostZoomMapImpl() {
 }