Enable Fixed Layout Mode on TOUCH_UI.

BUG=none
TEST=manually


Review URL: http://codereview.chromium.org/7764006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98716 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/render_view.cc

@@ -262,6 +262,10 @@ static const int kDelaySecondsForContentStateSync = 1;
 // The maximum number of popups that can be spawned from one page.
 static const int kMaximumNumberOfUnacknowledgedPopups = 25;
 
+// The default layout width and height for pages when fixed layout is enabled.
+static const int kDefaultLayoutWidth = 980;
+static const int kDefaultLayoutHeight = 640;
+
 static const float kScalingIncrement = 0.1f;
 
 static void GetRedirectChain(WebDataSource* ds, std::vector<GURL>* result) {
@@ -1228,6 +1232,16 @@ void RenderView::UpdateURL(WebFrame* frame) {
     accessibility_.reset();
     pending_accessibility_notifications_.clear();
   }
+#if defined(TOUCH_UI)
+  // Only enable fixed layout for normal web content.
+  GURL frame_url = GURL(request.url());
+  if (frame_url.SchemeIs(chrome::kHttpScheme) ||
+      frame_url.SchemeIs(chrome::kHttpsScheme)) {
+    webview()->enableFixedLayoutMode(true);
+    webview()->setFixedLayoutSize(
+        WebSize(kDefaultLayoutWidth, kDefaultLayoutHeight));
+  }
+#endif
 }
 
 // Tell the embedding application that the title of the active page has changed
@@ -1440,6 +1454,12 @@ WebExternalPopupMenu* RenderView::createExternalPopupMenu(
   return external_popup_menu_.get();
 }
 
+#if defined(TOUCH_UI)
+WebRect RenderView::getDeviceRect() const {
+  return WebRect(0, 0, size().width(), size().height());
+}
+#endif
+
 RenderWidgetFullscreenPepper* RenderView::CreatePepperFullscreenContainer(
     webkit::ppapi::PluginInstance* plugin) {
   GURL active_url;

content/renderer/render_view.h

@@ -150,6 +150,7 @@ struct WebFindOptions;
 struct WebMediaPlayerAction;
 struct WebPluginParams;
 struct WebPoint;
+struct WebRect;
 struct WebWindowFeatures;
 }
 
@@ -371,6 +372,9 @@ class RenderView : public RenderWidget,
   virtual WebKit::WebExternalPopupMenu* createExternalPopupMenu(
       const WebKit::WebPopupMenuInfo& popup_menu_info,
       WebKit::WebExternalPopupMenuClient* popup_menu_client);
+#if defined(TOUCH_UI)
+  virtual WebKit::WebRect getDeviceRect() const;
+#endif
   virtual WebKit::WebStorageNamespace* createSessionStorageNamespace(
       unsigned quota);
   virtual void didAddMessageToConsole(