Compute pageScaleFactor on page so that fixed layout page fits width of window.

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 4344 matching lines @@
 }
 
 void RenderViewImpl::OnMoveOrResizeStarted() {
   if (webview())
     webview()->hidePopups();
 }
 
 void RenderViewImpl::OnResize(const gfx::Size& new_size,
                               const gfx::Rect& resizer_rect,
                               bool is_fullscreen) {
+  content::GetContentClient()->renderer()->RenderViewResized(

[darin (slow to review), 2012/02/15 06:13:23]

this is really a "before"-resize event.  notice how the WebView's size is still
the old size when RenderViewResized is called.  is that intentional?

[Fady Samuel, 2012/02/15 17:46:05]

For the purposes of the layout fallback width yes, because the viewport is
computed after this. I have renamed the method to RenderViewWillResize for
clarity.

+      this, new_size.width(), new_size.height());
   if (webview()) {
     webview()->hidePopups();
     if (send_preferred_size_changes_) {
       webview()->mainFrame()->setCanHaveScrollbars(
           ShouldDisplayScrollbars(new_size.width(), new_size.height()));
     }
     UpdateScrollState(webview()->mainFrame());
   }
 
   RenderWidget::OnResize(new_size, resizer_rect, is_fullscreen);
@@ skipping 666 matching lines @@
 bool RenderViewImpl::WebWidgetHandlesCompositorScheduling() const {
   return !!RenderThreadImpl::current()->compositor_thread();
 }
 
 void RenderViewImpl::OnJavaBridgeInit() {
   DCHECK(!java_bridge_dispatcher_.get());
 #if defined(ENABLE_JAVA_BRIDGE)
   java_bridge_dispatcher_.reset(new JavaBridgeDispatcher(this));
 #endif
 }