[Android WebView] Implement WebSettings.{get|set}LoadWithOverviewMode

webkit/glue/webpreferences.cc

Index: webkit/glue/webpreferences.cc
diff --git a/webkit/glue/webpreferences.cc b/webkit/glue/webpreferences.cc
index 3b5ba70ae8f00147b3df42cee789ccf03018d9aa..ac8d245c77f6fabd9e7739b7f8fde6599191b5e9 100644
--- a/webkit/glue/webpreferences.cc
+++ b/webkit/glue/webpreferences.cc
@@ -142,6 +142,7 @@ WebPreferences::WebPreferences()
 #endif
       supports_multiple_windows(true),
       viewport_enabled(false),
+      viewport_scale_content_to_fit(true),
       record_rendering_stats(false),
       cookie_enabled(true)
 #if defined(OS_ANDROID)
@@ -483,6 +484,10 @@ void WebPreferences::Apply(WebView* web_view) const {
   settings->setSupportsMultipleWindows(supports_multiple_windows);
 
   settings->setViewportEnabled(viewport_enabled);
+  if (settings->viewportScaleContentToFit() != viewport_scale_content_to_fit) {
+    settings->setViewportScaleContentToFit(viewport_scale_content_to_fit);
+    web_view->resetScrollAndScaleState();
+  }
 
 #if defined(OS_ANDROID)
   settings->setAllowCustomScrollbarInMainFrame(false);