Add Blink setting to block doc.written scripts on 2g-like networks

content/renderer/render_frame_impl.cc

 // Copyright 2013 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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1053 matching lines @@
       push_messaging_dispatcher_(NULL),
       presentation_dispatcher_(NULL),
       screen_orientation_dispatcher_(NULL),
       manifest_manager_(NULL),
       accessibility_mode_(AccessibilityModeOff),
       render_accessibility_(NULL),
       media_player_delegate_(NULL),
       is_using_lofi_(false),
       effective_connection_type_(
           blink::WebEffectiveConnectionType::TypeUnknown),
+      effective_connection_type_override_(
+          blink::WebEffectiveConnectionType::TypeUnknown),
+      effective_connection_type_overridden_(false),
       is_pasting_(false),
       suppress_further_dialogs_(false),
       blame_context_(nullptr),
 #if defined(ENABLE_PLUGINS)
       focused_pepper_plugin_(nullptr),
       pepper_last_mouse_event_target_(nullptr),
 #endif
       frame_binding_(this),
       has_accessed_initial_document_(false),
       weak_factory_(this) {
@@ skipping 2660 matching lines @@
   Send(new FrameHostMsg_DidChangeThemeColor(
       routing_id_, frame_->document().themeColor()));
 }
 
 void RenderFrameImpl::dispatchLoad() {
   Send(new FrameHostMsg_DispatchLoad(routing_id_));
 }
 
 blink::WebEffectiveConnectionType
 RenderFrameImpl::getEffectiveConnectionType() {
+  if (effective_connection_type_overridden_)
+    return effective_connection_type_override_;
   return effective_connection_type_;
 }
 
+void RenderFrameImpl::setEffectiveConnectionTypeOverride(
+    blink::WebEffectiveConnectionType effective_type) {
+  effective_connection_type_override_ = effective_type;
+  effective_connection_type_overridden_ = true;
+}
+
+void RenderFrameImpl::clearEffectiveConnectionTypeOverride() {
+  effective_connection_type_overridden_ = false;
+}
+
 void RenderFrameImpl::didChangeSelection(bool is_empty_selection) {
   if (!GetRenderWidget()->input_handler().handling_input_event() &&
       !handling_select_range_)
     return;
 
   if (is_empty_selection)
     selection_text_.clear();
 
   // UpdateTextInputState should be called before SyncSelectionIfRequired.
   // UpdateTextInputState may send TextInputStateChanged to notify the focus
@@ skipping 2598 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content