Remove vestigal in-process PPB_Graphics2D impl.

webkit/plugins/ppapi/ppb_graphics_2d_impl.h

Index: webkit/plugins/ppapi/ppb_graphics_2d_impl.h
diff --git a/webkit/plugins/ppapi/ppb_graphics_2d_impl.h b/webkit/plugins/ppapi/ppb_graphics_2d_impl.h
deleted file mode 100644
index ba2a7dfb349a5680c1ebae81a994659ff7fe55b9..0000000000000000000000000000000000000000
--- a/webkit/plugins/ppapi/ppb_graphics_2d_impl.h
+++ /dev/null
@@ -1,222 +0,0 @@
-// 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.
-
-#ifndef WEBKIT_PLUGINS_PPAPI_PPB_GRAPHICS_2D_IMPL_H_
-#define WEBKIT_PLUGINS_PPAPI_PPB_GRAPHICS_2D_IMPL_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/weak_ptr.h"
-#include "ppapi/c/pp_completion_callback.h"
-#include "ppapi/c/ppb_graphics_2d.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/shared_impl/tracked_callback.h"
-#include "ppapi/thunk/ppb_graphics_2d_api.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebCanvas.h"
-#include "webkit/plugins/webkit_plugins_export.h"
-
-namespace gfx {
-class Point;
-class Rect;
-}
-
-namespace content {
-class PepperGraphics2DHost;
-}
-
-namespace webkit {
-namespace ppapi {
-
-class PPB_ImageData_Impl;
-class PluginInstance;
-
-class WEBKIT_PLUGINS_EXPORT PPB_Graphics2D_Impl :
-    public ::ppapi::Resource,
-    public ::ppapi::thunk::PPB_Graphics2D_API {
- public:
-  virtual ~PPB_Graphics2D_Impl();
-
-  static PP_Resource Create(PP_Instance instance,
-                            const PP_Size& size,
-                            PP_Bool is_always_opaque);
-
-  bool is_always_opaque() const { return is_always_opaque_; }
-
-  // Resource overrides.
-  virtual ::ppapi::thunk::PPB_Graphics2D_API* AsPPB_Graphics2D_API();
-  virtual void LastPluginRefWasDeleted() OVERRIDE;
-
-  // PPB_Graphics2D functions.
-  virtual PP_Bool Describe(PP_Size* size, PP_Bool* is_always_opaque) OVERRIDE;
-  virtual void PaintImageData(PP_Resource image_data,
-                              const PP_Point* top_left,
-                              const PP_Rect* src_rect) OVERRIDE;
-  virtual void Scroll(const PP_Rect* clip_rect,
-                      const PP_Point* amount) OVERRIDE;
-  virtual void ReplaceContents(PP_Resource image_data) OVERRIDE;
-  virtual bool SetScale(float scale) OVERRIDE;
-  virtual float GetScale() OVERRIDE;
-  virtual int32_t Flush(
-      scoped_refptr< ::ppapi::TrackedCallback> callback,
-      PP_Resource* old_image_data) OVERRIDE;
-
-  bool ReadImageData(PP_Resource image, const PP_Point* top_left);
-
-  // Assciates this device with the given plugin instance. You can pass NULL to
-  // clear the existing device. Returns true on success. In this case, a
-  // repaint of the page will also be scheduled. Failure means that the device
-  // is already bound to a different instance, and nothing will happen.
-  bool BindToInstance(PluginInstance* new_instance);
-
-  // Paints the current backing store to the web page.
-  void Paint(WebKit::WebCanvas* canvas,
-             const gfx::Rect& plugin_rect,
-             const gfx::Rect& paint_rect);
-
-  // Notifications about the view's progress painting.  See PluginInstance.
-  // These messages are used to send Flush callbacks to the plugin.
-  void ViewWillInitiatePaint();
-  void ViewInitiatedPaint();
-  void ViewFlushedPaint();
-
-  PPB_ImageData_Impl* image_data() { return image_data_.get(); }
-  PluginInstance* bound_instance() const { return bound_instance_; }
-
-  // Scale |op_rect| to logical pixels, taking care to include partially-
-  // covered logical pixels (aka DIPs). Also scale optional |delta| to logical
-  // pixels as well for scrolling cases. Returns false for scrolling cases where
-  // scaling either |op_rect| or |delta| would require scrolling to fall back to
-  // invalidation due to rounding errors, true otherwise.
-  static bool ConvertToLogicalPixels(float scale,
-                                     gfx::Rect* op_rect,
-                                     gfx::Point* delta);
-
- private:
-  explicit PPB_Graphics2D_Impl(PP_Instance instance);
-
-  bool Init(int width, int height, bool is_always_opaque);
-
-  // Tracks a call to flush that requires a callback.
-  class FlushCallbackData {
-   public:
-    FlushCallbackData() {
-      Clear();
-    }
-
-    explicit FlushCallbackData(
-        scoped_refptr< ::ppapi::TrackedCallback> callback) {
-      Set(callback);
-    }
-
-    bool is_null() const {
-      return !::ppapi::TrackedCallback::IsPending(callback_);
-    }
-
-    void Set(scoped_refptr< ::ppapi::TrackedCallback> callback) {
-      callback_ = callback;
-    }
-
-    void Clear() {
-      callback_ = NULL;
-    }
-
-    void Execute(int32_t result) {
-      callback_->Run(result);
-    }
-
-    void PostAbort() {
-      if (!is_null()) {
-        callback_->PostAbort();
-        Clear();
-      }
-    }
-
-   private:
-    scoped_refptr< ::ppapi::TrackedCallback> callback_;
-  };
-
-  // Called internally to execute the different queued commands. The
-  // parameters to these functions will have already been validated. The last
-  // rect argument will be filled by each function with the area affected by
-  // the update that requires invalidation. If there were no pixels changed,
-  // this rect can be untouched.
-  void ExecutePaintImageData(PPB_ImageData_Impl* image,
-                             int x, int y,
-                             const gfx::Rect& src_rect,
-                             gfx::Rect* invalidated_rect);
-  void ExecuteScroll(const gfx::Rect& clip, int dx, int dy,
-                     gfx::Rect* invalidated_rect);
-  void ExecuteReplaceContents(PPB_ImageData_Impl* image,
-                              gfx::Rect* invalidated_rect,
-                              PP_Resource* old_image_data);
-
-  // Schedules the offscreen callback to be fired at a future time. This
-  // will add the given item to the offscreen_flush_callbacks_ vector.
-  void ScheduleOffscreenCallback(const FlushCallbackData& callback);
-
-  // Function scheduled to execute by ScheduleOffscreenCallback that actually
-  // issues the offscreen callbacks.
-  void ExecuteOffscreenCallback(FlushCallbackData data);
-
-  // Returns true if there is any type of flush callback pending.
-  bool HasPendingFlush() const;
-
-  scoped_refptr<PPB_ImageData_Impl> image_data_;
-
-  // Non-owning pointer to the plugin instance this context is currently bound
-  // to, if any. If the context is currently unbound, this will be NULL.
-  PluginInstance* bound_instance_;
-
-  // Keeps track of all drawing commands queued before a Flush call.
-  struct QueuedOperation;
-  typedef std::vector<QueuedOperation> OperationQueue;
-  OperationQueue queued_operations_;
-
-  // The plugin can give us one "Flush" at a time. This flush will either be in
-  // the "unpainted" state (in which case unpainted_flush_callback_ will be
-  // non-NULL) or painted, in which case painted_flush_callback_ will be
-  // non-NULL). There can also be an offscreen callback which is handled
-  // separately (see offscreen_callback_pending_). Only one of these three
-  // things may be set at a time to enforce the "only one pending flush at a
-  // time" constraint.
-  //
-  // "Unpainted" ones are flush requests which have never been painted. These
-  // could have been done while the RenderView was already waiting for an ACK
-  // from a previous paint, so won't generate a new one yet.
-  //
-  // "Painted" ones are those flushes that have been painted by RenderView, but
-  // for which the ACK from the browser has not yet been received.
-  //
-  // When we get updates from a plugin with a callback, it is first added to
-  // the unpainted callbacks. When the renderer has initiated the paint, we move
-  // it to the painted callback. When the renderer receives a flush, we execute
-  // and clear the painted callback. This helps avoid the callback being called
-  // prematurely in response to flush notifications for a previous update.
-  FlushCallbackData unpainted_flush_callback_;
-  FlushCallbackData painted_flush_callback_;
-
-  // When doing offscreen flushes, we issue a task that issues the callback
-  // later. This is set when one of those tasks is pending so that we can
-  // enforce the "only one pending flush at a time" constraint in the API.
-  bool offscreen_flush_pending_;
-
-  // Set to true if the plugin declares that this device will always be opaque.
-  // This allows us to do more optimized painting in some cases.
-  bool is_always_opaque_;
-
-  // Set to the scale between what the plugin considers to be one pixel and one
-  // DIP
-  float scale_;
-
-  base::WeakPtrFactory<PPB_Graphics2D_Impl> weak_ptr_factory_;
-
-  friend class content::PepperGraphics2DHost;
-  DISALLOW_COPY_AND_ASSIGN(PPB_Graphics2D_Impl);
-};
-
-}  // namespace ppapi
-}  // namespace webkit
-
-#endif  // WEBKIT_PLUGINS_PPAPI_PPB_GRAPHICS_2D_IMPL_H_