Reland attempt 2: Improve <webview> autosize:

content/renderer/browser_plugin/browser_plugin.h

 // Copyright 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.
 
 #ifndef  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/public/web/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 234 matching lines @@
   virtual base::SharedMemory* CreateDamageBuffer(
       const size_t size,
       base::SharedMemoryHandle* shared_memory_handle);
   // Swaps out the |current_damage_buffer_| with the |pending_damage_buffer_|.
   void SwapDamageBuffers();
 
   // Populates BrowserPluginHostMsg_ResizeGuest_Params with resize state and
   // allocates a new |pending_damage_buffer_| if in software rendering mode.
   void PopulateResizeGuestParameters(
       BrowserPluginHostMsg_ResizeGuest_Params* params,
-      const gfx::Rect& view_size);
+      const gfx::Rect& view_size,
+      bool needs_repaint);
 
   // Populates BrowserPluginHostMsg_AutoSize_Params object with autosize state.
   void PopulateAutoSizeParameters(
-      BrowserPluginHostMsg_AutoSize_Params* params, bool current_auto_size);
+      BrowserPluginHostMsg_AutoSize_Params* params, bool auto_size_enabled);
 
   // Populates both AutoSize and ResizeGuest parameters based on the current
   // autosize state.
   void GetDamageBufferWithSizeParams(
       BrowserPluginHostMsg_AutoSize_Params* auto_size_params,
-      BrowserPluginHostMsg_ResizeGuest_Params* resize_guest_params);
+      BrowserPluginHostMsg_ResizeGuest_Params* resize_guest_params,
+      bool needs_repaint);
 
   // Informs the guest of an updated autosize state.
-  void UpdateGuestAutoSizeState(bool current_auto_size);
+  void UpdateGuestAutoSizeState(bool auto_size_enabled);
 
   // Indicates whether a damage buffer was used by the guest process for the
   // provided |params|.
   static bool UsesDamageBuffer(
       const BrowserPluginMsg_UpdateRect_Params& params);
 
   // Indicates whether the |pending_damage_buffer_| was used to copy over pixels
   // given the provided |params|.
   bool UsesPendingDamageBuffer(
       const BrowserPluginMsg_UpdateRect_Params& params);
@@ skipping 26 matching lines @@
   // We cache the |render_view_|'s routing ID because we need it on destruction.
   // If the |render_view_| is destroyed before the BrowserPlugin is destroyed
   // then we will attempt to access a NULL pointer.
   int render_view_routing_id_;
   WebKit::WebPluginContainer* container_;
   scoped_ptr<BrowserPluginBindings> bindings_;
   scoped_ptr<BrowserPluginBackingStore> backing_store_;
   scoped_ptr<base::SharedMemory> current_damage_buffer_;
   scoped_ptr<base::SharedMemory> pending_damage_buffer_;
   uint32 damage_buffer_sequence_id_;
-  bool resize_ack_received_;
+  bool paint_ack_received_;
   gfx::Rect plugin_rect_;
   float last_device_scale_factor_;
   // Bitmap for crashed plugin. Lazily initialized, non-owning pointer.
   SkBitmap* sad_guest_;
   bool guest_crashed_;
   scoped_ptr<BrowserPluginHostMsg_ResizeGuest_Params> pending_resize_params_;
-  bool auto_size_ack_pending_;
+  bool is_auto_size_state_dirty_;
+  // Maximum size constraint for autosize.
+  gfx::Size max_auto_size_;
   std::string storage_partition_id_;
   bool persist_storage_;
   bool valid_partition_id_;
   int content_window_routing_id_;
   bool plugin_focused_;
   // Tracks the visibility of the browser plugin regardless of the whole
   // embedder RenderView's visibility.
   bool visible_;
 
   WebCursor cursor_;
@@ skipping 22 matching lines @@
   base::WeakPtrFactory<BrowserPlugin> weak_ptr_factory_;
 
   std::vector<EditCommand> edit_commands_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_