Refactor google drive trashed filter to use api parameter

Now use the api `trashed` parameter to filter out trashed docs instead
of doing our own filtering.

Test Plan:
-Set up Google Drive
-Create the following:
	-Valid file at root
	-Valid folder containing valid file
	-Trashed file formerly at root
	-Trashed folder containing a file
-Verify that the trashed items are not displayed, but valid items are

Closes CNVS-25959

Change-Id: I9054d48910f6b8cbd5ebcecf15d35bf98d6fe3d0
Reviewed-on: https://gerrit.instructure.com/68740
Tested-by: Jenkins
Reviewed-by: Matthew Wheeler <mwheeler@instructure.com>
QA-Review: Heath Hales <hhales@instructure.com>
Product-Review: Gentry Beckmann <gbeckmann@instructure.com>

Author: beckesea

gems/google_docs/lib/google_docs/drive_connection.rb

@@ -185,7 +185,7 @@ def self.config
     def list(extensions)
       client_params = {
         api_method: drive.files.list,
-        parameters: { maxResults: 0 }
+        parameters: { maxResults: 0, q: 'trashed=false' }
       }
       list_data = client_execute!(client_params).data.to_hash
       folderize_list(list_data, extensions)
@@ -216,7 +216,7 @@ def folderize_list(documents, extensions)
         root = root.select { |e| extensions.include?(e.extension) }
       end
 
-      root.select { |e| !e.in_trash? }
+      root
     end
 
     def get_folder_name_by_id(entries, folder_id)

gems/google_docs/lib/google_docs/drive_entry.rb

@@ -48,10 +48,6 @@ def download_url
       get_file_data[:url]
     end
 
-    def in_trash?
-      @entry['labels']['trashed']
-    end
-
     def to_hash
       {
         :name => display_name,

gems/google_docs/spec/google_docs/drive_connection_spec.rb

@@ -26,6 +26,7 @@
   fake_client = Class.new do
     attr_reader :token
     attr_writer :responses
+    attr_accessor :inputs
 
     def initialize(input=nil)
       @input = input
@@ -62,7 +63,12 @@ def get
       "/api_method"
     end
 
-    def execute!(*_args)
+    def list
+      "/api_method"
+    end
+
+    def execute!(*args)
+      @inputs = args
       response = @responses[@calls]
       @calls += 1
       response
@@ -164,6 +170,19 @@ def execute(*args)
       connection.send(:set_api_client, client)
     end
 
+    describe "#list_with_extension_filter" do
+      before do
+        client.responses = [
+          stub(status: 200, data: { "items" => [] })
+        ]
+      end
+
+      it "should submit `trashed = false` parameter" do
+        connection.list_with_extension_filter('.txt')
+        expect(client.inputs.last[:parameters][:q]).to eql 'trashed=false'
+      end
+    end
+
     describe "#download" do
       before do
         client.responses = [