<webview>: Move autosize from content to chrome

chrome/browser/guest_view/guest_view_base.cc

Index: chrome/browser/guest_view/guest_view_base.cc
diff --git a/chrome/browser/guest_view/guest_view_base.cc b/chrome/browser/guest_view/guest_view_base.cc
index 5e4ebab8e8250d3ab47342e678db1eac084268b5..1300cfbb50d4b30240729963b6c2ff87dfcf8b4a 100644
--- a/chrome/browser/guest_view/guest_view_base.cc
+++ b/chrome/browser/guest_view/guest_view_base.cc
@@ -93,6 +93,7 @@ GuestViewBase::GuestViewBase(content::BrowserContext* browser_context,
       guest_instance_id_(guest_instance_id),
       view_instance_id_(guestview::kInstanceIDNone),
       initialized_(false),
+      auto_size_enabled_(false),
       weak_ptr_factory_(this) {
 }
 
@@ -143,6 +144,34 @@ void GuestViewBase::InitWithWebContents(
   DidInitialize();
 }
 
+void GuestViewBase::SetAutoSize(bool enabled,
+                                const gfx::Size& min_size,
+                                const gfx::Size& max_size) {
+  min_auto_size_ = min_size;
+  min_auto_size_.SetToMin(max_size);
+  max_auto_size_ = max_size;
+  max_auto_size_.SetToMax(min_size);
+
+  enabled &= !min_auto_size_.IsEmpty() && !max_auto_size_.IsEmpty() &&
+      IsAutoSizeSupported();
+  if (!enabled && !auto_size_enabled_)
+    return;
+
+  auto_size_enabled_ = enabled;
+
+  if (!attached())
+    return;
+
+  content::RenderViewHost* rvh = guest_web_contents()->GetRenderViewHost();
+  if (auto_size_enabled_) {
+    rvh->EnableAutoResize(min_auto_size_, max_auto_size_);
+  } else {
+    rvh->DisableAutoResize(element_size_);
+    guest_size_ = element_size_;
+    GuestSizeChangedDueToAutoSize(guest_size_, element_size_);
+  }
+}
+
 // static
 void GuestViewBase::RegisterGuestViewType(
     const std::string& view_type,
@@ -222,6 +251,10 @@ base::WeakPtr<GuestViewBase> GuestViewBase::AsWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
+bool GuestViewBase::IsAutoSizeSupported() const {
+  return false;
+}
+
 bool GuestViewBase::IsDragAndDropEnabled() const {
   return false;
 }
@@ -268,10 +301,23 @@ void GuestViewBase::DidAttach() {
   SendQueuedEvents();
 }
 
+void GuestViewBase::ElementSizeChanged(const gfx::Size& old_size,
+                                       const gfx::Size& new_size) {
+  element_size_ = new_size;
+}
+
 int GuestViewBase::GetGuestInstanceID() const {
   return guest_instance_id_;
 }
 
+void GuestViewBase::GuestSizeChanged(const gfx::Size& old_size,
+                                     const gfx::Size& new_size) {
+  if (!auto_size_enabled_)
+    return;
+  guest_size_ = new_size;
+  GuestSizeChangedDueToAutoSize(old_size, new_size);
+}
+
 void GuestViewBase::SetOpener(GuestViewBase* guest) {
   if (guest && guest->IsViewType(GetViewType())) {
     opener_ = guest->AsWeakPtr();
@@ -311,6 +357,16 @@ void GuestViewBase::DidStopLoading(content::RenderViewHost* render_view_host) {
   DidStopLoading();
 }
 
+void GuestViewBase::RenderViewReady() {
+  GuestReady();
+  content::RenderViewHost* rvh = guest_web_contents()->GetRenderViewHost();
+  if (auto_size_enabled_) {
+    rvh->EnableAutoResize(min_auto_size_, max_auto_size_);
+  } else {
+    rvh->DisableAutoResize(element_size_);
+  }
+}
+
 void GuestViewBase::WebContentsDestroyed() {
   GuestDestroyed();
   delete this;