<webview>: Remove Undocumented Resize DOM event

<webview> had an undocumented resize event that we added as an experiment
but it seems to be causing more harm than good, so let's just remove it.

BUG=492648
TBR=nasko@chromium.org for trivial browser_plugin_delegate.h change.

Review URL: https://codereview.chromium.org/1155163009

Cr-Commit-Position: refs/heads/master@{#331803}

4 files changed, 7 insertions, 15 deletions

diff --git a/extensions/renderer/guest_view/extensions_guest_view_container.cc b/extensions/renderer/guest_view/extensions_guest_view_container.cc
index 358f800..1bd8575 100644
--- a/extensions/renderer/guest_view/extensions_guest_view_container.cc
+++ b/extensions/renderer/guest_view/extensions_guest_view_container.cc
@@ -49,8 +49,7 @@ void ExtensionsGuestViewContainer::RegisterElementResizeCallback(
   element_resize_isolate_ = isolate;
 }
 
-void ExtensionsGuestViewContainer::DidResizeElement(const gfx::Size& old_size,
-                                                    const gfx::Size& new_size) {
+void ExtensionsGuestViewContainer::DidResizeElement(const gfx::Size& new_size) {
   // Call the element resize callback, if one is registered.
   if (element_resize_callback_.IsEmpty())
     return;
@@ -58,11 +57,10 @@ void ExtensionsGuestViewContainer::DidResizeElement(const gfx::Size& old_size,
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&ExtensionsGuestViewContainer::CallElementResizeCallback,
-                 weak_ptr_factory_.GetWeakPtr(), old_size, new_size));
+                 weak_ptr_factory_.GetWeakPtr(), new_size));
 }
 
 void ExtensionsGuestViewContainer::CallElementResizeCallback(
-    const gfx::Size& old_size,
     const gfx::Size& new_size) {
   v8::HandleScope handle_scope(element_resize_isolate_);
   v8::Local<v8::Function> callback = v8::Local<v8::Function>::New(
@@ -71,10 +69,8 @@ void ExtensionsGuestViewContainer::CallElementResizeCallback(
   if (context.IsEmpty())
     return;
 
-  const int argc = 4;
+  const int argc = 2;
   v8::Local<v8::Value> argv[argc] = {
-      v8::Integer::New(element_resize_isolate_, old_size.width()),
-      v8::Integer::New(element_resize_isolate_, old_size.height()),
       v8::Integer::New(element_resize_isolate_, new_size.width()),
       v8::Integer::New(element_resize_isolate_, new_size.height())};
 
diff --git a/extensions/renderer/guest_view/extensions_guest_view_container.h b/extensions/renderer/guest_view/extensions_guest_view_container.h
index 0626da0..4e3f3e9 100644
--- a/extensions/renderer/guest_view/extensions_guest_view_container.h
+++ b/extensions/renderer/guest_view/extensions_guest_view_container.h
@@ -27,12 +27,10 @@ class ExtensionsGuestViewContainer : public guest_view::GuestViewContainer {
                                      v8::Isolate* isolate);
 
   // BrowserPluginDelegate implementation.
-  void DidResizeElement(const gfx::Size& old_size,
-                        const gfx::Size& new_size) override;
+  void DidResizeElement(const gfx::Size& new_size) override;
 
  private:
-  void CallElementResizeCallback(const gfx::Size& old_size,
-                                 const gfx::Size& new_size);
+  void CallElementResizeCallback(const gfx::Size& new_size);
 
   v8::Global<v8::Function> destruction_callback_;
   v8::Isolate* destruction_isolate_;
diff --git a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.cc b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.cc
index 812f381..fb95d21 100644
--- a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.cc
+++ b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.cc
@@ -177,8 +177,7 @@ void MimeHandlerViewContainer::DidReceiveData(const char* data,
 }
 
 
-void MimeHandlerViewContainer::DidResizeElement(const gfx::Size& old_size,
-                                                const gfx::Size& new_size) {
+void MimeHandlerViewContainer::DidResizeElement(const gfx::Size& new_size) {
   element_size_ = new_size;
   render_frame()->Send(new ExtensionsGuestViewHostMsg_ResizeGuest(
       render_frame()->GetRoutingID(), element_instance_id(), new_size));
diff --git a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h
index 8cc31a1..c39bf93 100644
--- a/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h
+++ b/extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h
@@ -53,8 +53,7 @@ class MimeHandlerViewContainer : public guest_view::GuestViewContainer,
   // BrowserPluginDelegate implementation.
   void DidFinishLoading() override;
   void DidReceiveData(const char* data, int data_length) override;
-  void DidResizeElement(const gfx::Size& old_size,
-                        const gfx::Size& new_size) override;
+  void DidResizeElement(const gfx::Size& new_size) override;
   v8::Local<v8::Object> V8ScriptableObject(v8::Isolate*) override;
 
   // WebURLLoaderClient overrides.