Implement transform/clip support for Android WebView.

cc/output/software_renderer.cc

 // 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.
 
 #include "cc/output/software_renderer.h"
 
 #include "base/debug/trace_event.h"
 #include "cc/base/math_util.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
@@ skipping 133 matching lines @@
 
 bool SoftwareRenderer::BindFramebufferToTexture(
     DrawingFrame* frame,
     const ScopedResource* texture,
     gfx::Rect framebuffer_rect) {
   current_framebuffer_lock_.reset();
   current_framebuffer_lock_ = make_scoped_ptr(
       new ResourceProvider::ScopedWriteLockSoftware(
           resource_provider_, texture->id()));
   current_canvas_ = current_framebuffer_lock_->sk_canvas();
-  InitializeMatrices(frame, framebuffer_rect, false);
-  SetDrawViewportSize(framebuffer_rect.size());
+  InitializeMatrices(frame, gfx::Vector2d(), framebuffer_rect, false);
+  SetDrawViewport(gfx::Rect(framebuffer_rect.size()));
 
   return true;
 }
 
 void SoftwareRenderer::SetScissorTestRect(gfx::Rect scissor_rect) {
   is_scissor_enabled_ = true;
   scissor_rect_ = scissor_rect;
   SetClipRect(scissor_rect);
 }
 
@@ skipping 19 matching lines @@
     ClearCanvas(SkColorSetARGB(0, 0, 0, 0));
   } else {
 #ifndef NDEBUG
     // On DEBUG builds, opaque render passes are cleared to blue
     // to easily see regions that were not drawn on the screen.
     ClearCanvas(SkColorSetARGB(255, 0, 0, 255));
 #endif
   }
 }
 
-void SoftwareRenderer::SetDrawViewportSize(gfx::Size viewport_size) {}
+void SoftwareRenderer::SetDrawViewport(gfx::Rect viewport) {}
 
 bool SoftwareRenderer::IsSoftwareResource(
     ResourceProvider::ResourceId resource_id) const {
   switch (resource_provider_->GetResourceType(resource_id)) {
     case ResourceProvider::GLTexture:
       return false;
     case ResourceProvider::Bitmap:
       return true;
   }
 
@@ skipping 250 matching lines @@
                              4 * rect.width());
 }
 
 void SoftwareRenderer::SetVisible(bool visible) {
   if (visible_ == visible)
     return;
   visible_ = visible;
 }
 
 }  // namespace cc