Fix page zoom to be frame-centric for out-of-process frames.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 164f77f1edd3b7df7a5279097b36a4144bc92290..e35caed5f13a9770cec2a11e202e2b7ee0830c81 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1337,8 +1337,6 @@ bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
                         OnSetZoomLevelForLoadingURL)
-    IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForView,
-                        OnSetZoomLevelForView)
     IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
                         OnResetPageEncodingToDefault)
@@ -1732,7 +1730,12 @@ void RenderViewImpl::AttachWebFrameWidget(blink::WebFrameWidget* frame_widget) {
 }
 
 void RenderViewImpl::SetZoomLevel(double zoom_level) {
-  webview()->setZoomLevel(zoom_level);
+  // This function may get called multiple times if our page has multiple
+  // frames, so we early out on subsequent calls so as to only send one
+  // notification.
+  if (zoom_level == webview()->zoomLevel())
+    return;
+
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnZoomLevelChanged());
 }
 
@@ -2344,14 +2347,6 @@ void RenderViewImpl::OnSetZoomLevelForLoadingURL(const GURL& url,
 #endif
 }
 
-void RenderViewImpl::OnSetZoomLevelForView(bool uses_temporary_zoom_level,
-                                           double level) {
-  uses_temporary_zoom_level_ = uses_temporary_zoom_level;
-
-  webview()->hidePopups();
-  SetZoomLevel(level);
-}
-
 void RenderViewImpl::OnSetPageEncoding(const std::string& encoding_name) {
   webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
 }
@@ -2539,7 +2534,6 @@ void RenderViewImpl::OnDisableScrollbarsForSmallWindows(
 
 void RenderViewImpl::OnSetRendererPrefs(
     const RendererPreferences& renderer_prefs) {
-  double old_zoom_level = renderer_preferences_.default_zoom_level;
   std::string old_accept_languages = renderer_preferences_.accept_languages;
 
   renderer_preferences_ = renderer_prefs;
@@ -2563,17 +2557,6 @@ void RenderViewImpl::OnSetRendererPrefs(
   }
 #endif  // defined(USE_DEFAULT_RENDER_THEME)
 
-  // If the zoom level for this page matches the old zoom default, and this
-  // is not a plugin, update the zoom level to match the new default.
-  if (webview() && webview()->mainFrame()->isWebLocalFrame() &&
-      !webview()->mainFrame()->document().isPluginDocument() &&
-      !ZoomValuesEqual(old_zoom_level,
-                       renderer_preferences_.default_zoom_level) &&
-      ZoomValuesEqual(webview()->zoomLevel(), old_zoom_level)) {
-    SetZoomLevel(renderer_preferences_.default_zoom_level);
-    zoomLevelChanged();
-  }
-
   if (webview() &&
       old_accept_languages != renderer_preferences_.accept_languages) {
     webview()->acceptLanguagesChanged();