[Blimp] Adds Blimp EngineSession and ClientSession skeleton

blimp/engine/browser/blimp_window.cc

-// Copyright 2015 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 "blimp/engine/browser/blimp_window.h"
-
-#include "base/strings/string_util.h"
-#include "blimp/engine/browser/blimp_browser_main_parts.h"
-#include "blimp/engine/browser/blimp_content_browser_client.h"
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/browser/web_contents.h"
-
-namespace blimp {
-namespace engine {
-
-namespace {
-const int kDefaultWindowWidthDip = 1;
-const int kDefaultWindowHeightDip = 1;
-
-// TODO(haibinlu): cleanup BlimpWindows on shutdown. See crbug/540498.
-typedef std::vector<BlimpWindow*> BlimpWindows;
-base::LazyInstance<BlimpWindows>::Leaky g_instances = LAZY_INSTANCE_INITIALIZER;
-
-// Returns the default size if |size| has 0 for width and/or height;
-// otherwise, returns |size|.
-gfx::Size AdjustWindowSize(const gfx::Size& size) {
-  return size.IsEmpty()
-             ? gfx::Size(kDefaultWindowWidthDip, kDefaultWindowHeightDip)
-             : size;
-}
-}  // namespace
-
-BlimpWindow::~BlimpWindow() {
-  BlimpWindows* instances = g_instances.Pointer();
-  BlimpWindows::iterator it(
-      std::find(instances->begin(), instances->end(), this));
-  DCHECK(it != instances->end());
-  instances->erase(it);
-}
-
-// static
-void BlimpWindow::Create(content::BrowserContext* browser_context,
-                         const GURL& url,
-                         content::SiteInstance* site_instance,
-                         const gfx::Size& initial_size) {
-  content::WebContents::CreateParams create_params(browser_context,
-                                                   site_instance);
-  scoped_ptr<content::WebContents> web_contents(
-      content::WebContents::Create(create_params));
-  BlimpWindow* win = DoCreate(web_contents.Pass(), initial_size);
-  if (!url.is_empty())
-    win->LoadURL(url);
-}
-
-void BlimpWindow::LoadURL(const GURL& url) {
-  content::NavigationController::LoadURLParams params(url);
-  params.transition_type = ui::PageTransitionFromInt(
-      ui::PAGE_TRANSITION_TYPED | ui::PAGE_TRANSITION_FROM_ADDRESS_BAR);
-  web_contents_->GetController().LoadURLWithParams(params);
-  web_contents_->Focus();
-}
-
-void BlimpWindow::AddNewContents(content::WebContents* source,
-                                 content::WebContents* new_contents,
-                                 WindowOpenDisposition disposition,
-                                 const gfx::Rect& initial_rect,
-                                 bool user_gesture,
-                                 bool* was_blocked) {
-  DoCreate(scoped_ptr<content::WebContents>(new_contents), initial_rect.size());
-}
-
-content::WebContents* BlimpWindow::OpenURLFromTab(
-    content::WebContents* source,
-    const content::OpenURLParams& params) {
-  // CURRENT_TAB is the only one we implement for now.
-  if (params.disposition != CURRENT_TAB)
-    return nullptr;
-  // TOOD(haibinlu): add helper method to get LoadURLParams from OpenURLParams.
-  content::NavigationController::LoadURLParams load_url_params(params.url);
-  load_url_params.source_site_instance = params.source_site_instance;
-  load_url_params.referrer = params.referrer;
-  load_url_params.frame_tree_node_id = params.frame_tree_node_id;
-  load_url_params.transition_type = params.transition;
-  load_url_params.extra_headers = params.extra_headers;
-  load_url_params.should_replace_current_entry =
-      params.should_replace_current_entry;
-
-  if (params.transferred_global_request_id != content::GlobalRequestID()) {
-    load_url_params.is_renderer_initiated = params.is_renderer_initiated;
-    load_url_params.transferred_global_request_id =
-        params.transferred_global_request_id;
-  } else if (params.is_renderer_initiated) {
-    load_url_params.is_renderer_initiated = true;
-  }
-
-  source->GetController().LoadURLWithParams(load_url_params);
-  return source;
-}
-
-void BlimpWindow::RequestToLockMouse(content::WebContents* web_contents,
-                                     bool user_gesture,
-                                     bool last_unlocked_by_target) {
-  web_contents->GotResponseToLockMouseRequest(true);
-}
-
-void BlimpWindow::CloseContents(content::WebContents* source) {
-  delete this;
-}
-
-void BlimpWindow::ActivateContents(content::WebContents* contents) {
-  contents->GetRenderViewHost()->Focus();
-}
-
-void BlimpWindow::DeactivateContents(content::WebContents* contents) {
-  contents->GetRenderViewHost()->Blur();
-}
-
-BlimpWindow::BlimpWindow(scoped_ptr<content::WebContents> web_contents)
-    : web_contents_(web_contents.Pass()) {
-  web_contents_->SetDelegate(this);
-  g_instances.Get().push_back(this);
-}
-
-// static
-BlimpWindow* BlimpWindow::DoCreate(
-    scoped_ptr<content::WebContents> web_contents,
-    const gfx::Size& initial_size) {
-  BlimpWindow* win = new BlimpWindow(web_contents.Pass());
-  content::RenderWidgetHostView* host_view =
-      win->web_contents_->GetRenderWidgetHostView();
-  if (host_view)
-    host_view->SetSize(AdjustWindowSize(initial_size));
-  return win;
-}
-
-}  // namespace engine
-}  // namespace blimp