[GPU] GLES2 lost context recovery

gpu/command_buffer/client/gles2_demo_cc.cc

Index: gpu/command_buffer/client/gles2_demo_cc.cc
===================================================================
--- gpu/command_buffer/client/gles2_demo_cc.cc	(revision 37846)
+++ gpu/command_buffer/client/gles2_demo_cc.cc	(working copy)
@@ -124,33 +124,6 @@
   CheckGLError();
 }
 
-void Draw() {
-  // Note: the viewport is automatically set up to cover the entire Canvas.
-  // Clear the color buffer
-  glClear(GL_COLOR_BUFFER_BIT);
-  CheckGLError();
-  // Use the program object
-  glUseProgram(g_programObject);
-  CheckGLError();
-  // Load the vertex data
-  glBindBuffer(GL_ARRAY_BUFFER, g_vbo);
-  glEnableVertexAttribArray(0);
-  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
-  glEnableVertexAttribArray(1);
-  glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0,
-                        reinterpret_cast<const void*>(g_texCoordOffset));
-  CheckGLError();
-  // Bind the texture to texture unit 0
-  glBindTexture(GL_TEXTURE_2D, g_texture);
-  CheckGLError();
-  // Point the uniform sampler to texture unit 0
-  glUniform1i(g_textureLoc, 0);
-  CheckGLError();
-  glDrawArrays(GL_TRIANGLES, 0, 6);
-  CheckGLError();
-  glFlush();
-}
-
 GLuint CreateCheckerboardTexture() {
   static unsigned char pixels[] = {
     255, 255, 255,
@@ -171,19 +144,38 @@
   return texture;
 }
 
-void Init() {
+}  // anonymous namespace.
+
+void GLFromCPPInit() {
   glClearColor(0.f, 0.f, .7f, 1.f);
   g_texture = CreateCheckerboardTexture();
   InitShaders();
 }
 
-}  // anonymous namespace.
-
-void GLFromCPPTestFunction() {
-  static bool initialized = false;
-  if (!initialized) {
-    initialized = true;
-    Init();
-  }
-  Draw();
+void GLFromCPPDraw() {
+  // Note: the viewport is automatically set up to cover the entire Canvas.
+  // Clear the color buffer
+  glClear(GL_COLOR_BUFFER_BIT);
+  CheckGLError();
+  // Use the program object
+  glUseProgram(g_programObject);
+  CheckGLError();
+  // Load the vertex data
+  glBindBuffer(GL_ARRAY_BUFFER, g_vbo);
+  glEnableVertexAttribArray(0);
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
+  glEnableVertexAttribArray(1);
+  glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0,
+                        reinterpret_cast<const void*>(g_texCoordOffset));
+  CheckGLError();
+  // Bind the texture to texture unit 0
+  glBindTexture(GL_TEXTURE_2D, g_texture);
+  CheckGLError();
+  // Point the uniform sampler to texture unit 0
+  glUniform1i(g_textureLoc, 0);
+  CheckGLError();
+  glDrawArrays(GL_TRIANGLES, 0, 6);
+  CheckGLError();
+  glFlush();
 }
+