[DevTools] Switch from DIP to CSS pixels in device mode.

Source/core/inspector/InspectorPageAgent.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 945 matching lines @@
     // and we don't need "frame" at all.
     if (loader->frame() == m_page->mainFrame()) {
         m_scriptToEvaluateOnLoadOnce = m_pendingScriptToEvaluateOnLoadOnce;
         m_scriptPreprocessorSource = m_pendingScriptPreprocessor;
         m_pendingScriptToEvaluateOnLoadOnce = String();
         m_pendingScriptPreprocessor = String();
         if (m_inspectorResourceContentLoader)
             m_inspectorResourceContentLoader->stop();
     }
     m_frontend->frameNavigated(buildObjectForFrame(loader->frame()));
+    viewportChanged();
 }
 
 void InspectorPageAgent::frameAttachedToParent(LocalFrame* frame)
 {
     Frame* parentFrame = frame->tree().parent();
     if (!parentFrame->isLocalFrame())
         parentFrame = 0;
     m_frontend->frameAttached(frameId(frame), frameId(toLocalFrame(parentFrame)));
 }
 
@@ skipping 154 matching lines @@
     LayoutRect inflatedRect(rect);
     inflatedRect.inflate(-1);
     m_overlay->drawOutline(context, inflatedRect, colors[colorSelector++ % WTF_ARRAY_LENGTH(colors)]);
 }
 
 void InspectorPageAgent::didLayout(RenderObject*)
 {
     if (!m_enabled)
         return;
     m_overlay->update();
+    viewportChanged();
 }
 
 void InspectorPageAgent::didScroll()
 {
     if (m_enabled)
         m_overlay->update();
+    viewportChanged();
+}
+
+void InspectorPageAgent::viewportChanged()
+{
+    if (!m_enabled)
+        return;
+    IntSize contentsSize = m_page->deprecatedLocalMainFrame()->view()->contentsSize();
+    IntRect viewRect = m_page->deprecatedLocalMainFrame()->view()->visibleContentRect();
+    RefPtr<TypeBuilder::Page::Viewport> viewport = TypeBuilder::Page::Viewport::create()
+        .setScrollX(viewRect.x())
+        .setScrollY(viewRect.y())
+        .setContentsWidth(contentsSize.width())
+        .setContentsHeight(contentsSize.height())
+        .setPageScaleFactor(m_page->pageScaleFactor());
+    m_frontend->viewportChanged(viewport);
 }
 
 void InspectorPageAgent::didResizeMainFrame()
 {
 #if !OS(ANDROID)
     if (m_enabled && m_state->getBoolean(PageAgentState::showSizeOnResize))
         m_overlay->showAndHideViewSize(m_state->getBoolean(PageAgentState::showGridOnResize));
 #endif
     m_frontend->frameResized();
+    viewportChanged();
 }
 
 void InspectorPageAgent::didRecalculateStyle(int)
 {
     if (m_enabled)
         m_overlay->update();
 }
 
+void InspectorPageAgent::deviceOrPageScaleFactorChanged()
+{
+    if (m_enabled)
+        m_overlay->update();
+    viewportChanged();
+}
+
 void InspectorPageAgent::scriptsEnabled(bool isEnabled)
 {
     if (m_ignoreScriptsEnabledNotification)
         return;
 
     m_frontend->scriptsEnabled(isEnabled);
 }
 
 PassRefPtr<TypeBuilder::Page::Frame> InspectorPageAgent::buildObjectForFrame(LocalFrame* frame)
 {
@@ skipping 214 matching lines @@
 bool InspectorPageAgent::getEditedResourceContent(const String& url, String* content)
 {
     if (!m_editedResourceContent.contains(url))
         return false;
     *content = m_editedResourceContent.get(url);
     return true;
 }
 
 } // namespace WebCore