linux: add windowless plugin plumbing

chrome/renderer/webplugin_delegate_proxy.cc

Index: chrome/renderer/webplugin_delegate_proxy.cc
diff --git a/chrome/renderer/webplugin_delegate_proxy.cc b/chrome/renderer/webplugin_delegate_proxy.cc
index 45a98bf5d756cb6fc5c6a43cfec276d63e21c9d6..524b9089faae611c9bec0bc70ee7c4da79b75da4 100644
--- a/chrome/renderer/webplugin_delegate_proxy.cc
+++ b/chrome/renderer/webplugin_delegate_proxy.cc
@@ -476,13 +476,8 @@ bool WebPluginDelegateProxy::CreateBitmap(
   const size_t stride = skia::PlatformCanvas::StrideForWidth(width);
   const size_t size = stride * height;
 #if defined(OS_LINUX)
-  static unsigned long max_size = 0;
-  if (max_size == 0) {
-    std::string contents;
-    file_util::ReadFileToString(FilePath("/proc/sys/kernel/shmmax"), &contents);
-    max_size = strtoul(contents.c_str(), NULL, 0);
-  }
-  if (size > max_size)
+  memory->reset(TransportDIB::Create(size, 0));
+  if (!memory->get())
     return false;
 #endif
 #if defined(OS_MACOSX)
@@ -543,7 +538,19 @@ void WebPluginDelegateProxy::Paint(gfx::NativeDrawingContext context,
         CGImageCreateWithImageInRect(background_image, offset_rect.ToCGRect()));
     CGContextDrawImage(context, rect.ToCGRect(), sub_image);
 #else
-    NOTIMPLEMENTED();
+    cairo_t *cairo =
+        background_store_canvas_->getTopPlatformDevice().beginPlatformPaint();
+    cairo_save(cairo);
+    double surface_x = plugin_rect_.x();
+    double surface_y = plugin_rect_.y();
+    cairo_user_to_device(context, &surface_x, &surface_y);
+    cairo_set_source_surface(cairo, cairo_get_target(context),
+                             -surface_x, -surface_y);
+    cairo_rectangle(cairo, offset_rect.x(), offset_rect.y(),
+                    offset_rect.width(), offset_rect.height());
+    cairo_clip(cairo);
+    cairo_paint(cairo);
+    cairo_restore(cairo);
 #endif
   }
 
@@ -565,7 +572,15 @@ void WebPluginDelegateProxy::Paint(gfx::NativeDrawingContext context,
       CGImageCreateWithImageInRect(backing_image, offset_rect.ToCGRect()));
   CGContextDrawImage(context, rect.ToCGRect(), sub_image);
 #else
-  NOTIMPLEMENTED();
+  cairo_save(context);
+  cairo_t *cairo =
+      backing_store_canvas_->getTopPlatformDevice().beginPlatformPaint();
+  cairo_set_source_surface(context, cairo_get_target(cairo),
+                           plugin_rect_.x(), plugin_rect_.y());
+  cairo_rectangle(context, rect.x(), rect.y(), rect.width(), rect.height());
+  cairo_paint(context);
+  cairo_clip(context);
+  cairo_restore(context);
 #endif
 
   if (invalidate_pending_) {
@@ -619,11 +634,11 @@ bool WebPluginDelegateProxy::BackgroundChanged(
     if (memcmp(hdc_row_start, canvas_row_start, row_byte_size) != 0)
       return true;
   }
-
+  return false;
 #else
   NOTIMPLEMENTED();
+  return true;
 #endif
-  return false;
 }
 
 void WebPluginDelegateProxy::Print(gfx::NativeDrawingContext context) {
@@ -932,10 +947,14 @@ void WebPluginDelegateProxy::PaintSadPlugin(gfx::NativeDrawingContext context,
   skia::PlatformDevice& device = canvas.getTopPlatformDevice();
   device.drawToHDC(context, plugin_rect_.x(), plugin_rect_.y(), NULL);
 #elif defined(OS_LINUX)
+  cairo_save(context);
   cairo_t* cairo = canvas.getTopPlatformDevice().beginPlatformPaint();
-  cairo_set_source_surface(cairo, cairo_get_target(context),
+  cairo_set_source_surface(context, cairo_get_target(cairo),
                            plugin_rect_.x(), plugin_rect_.y());
-  cairo_paint(cairo);
+  cairo_rectangle(context, rect.x(), rect.y(), rect.width(), rect.height());
+  cairo_clip(context);
+  cairo_paint(context);
+  cairo_restore(context);
   // We have no endPlatformPaint() on the Linux PlatformDevice.
   // The cairo_t* is owned by the device.
 #elif defined(OS_MACOSX)
@@ -967,8 +986,16 @@ void WebPluginDelegateProxy::CopyFromTransportToBacking(const gfx::Rect& rect) {
       CGImageCreateWithImageInRect(image, rect.ToCGRect()));
   CGContextDrawImage(backing, rect.ToCGRect(), sub_image);
 #else
-  // TODO(port): probably some new code in TransportDIB should go here.
-  NOTIMPLEMENTED();
+  cairo_t *cairo =
+      backing_store_canvas_->getTopPlatformDevice().beginPlatformPaint();
+  cairo_save(cairo);
+  cairo_t *transport =
+      transport_store_canvas_->getTopPlatformDevice().beginPlatformPaint();
+  cairo_set_source_surface(cairo, cairo_get_target(transport), 0, 0);
+  cairo_rectangle(cairo, rect.x(), rect.y(), rect.width(), rect.height());
+  cairo_clip(cairo);
+  cairo_paint(cairo);
+  cairo_restore(cairo);
 #endif
   backing_store_painted_ = backing_store_painted_.Union(rect);
 }